Location: 65 km West of Homs, Homs Governorate Map
Open: 9am-6pm summer
9am-4pm winter
Phone: 740-002
				The Crac of the Knights (French pronunciation: /kʁak de 
				ʃəvaˈlje/; Arabic: حصن الفرسان), also Crac des Chevaliers, 
				Kurds») and previously Crac de l'Ospital, is a large medieval 
				mountain castle located in present-day Syria, which was the 
				headquarters of the Order of the Hospital of Saint John of 
				Jerusalem in Syrian territory during the time of the Crusades. 
				It is one of the best preserved medieval castles in the world. 
				The place was first inhabited in the 11th century by a 
				settlement of Kurdish troops stationed there by the Mirdasids. 
				As a result, it was known as Hisn al-Akrad, meaning the "Castle 
				of the Kurds." In 1142 it was handed over by Raymond II, count 
				of Tripoli, to the Knights Hospitaller. It remained his until he 
				fell in 1271. It was known as Crac de l'Ospital; The name Krak 
				des Chevaliers was coined in the 19th century. According to the 
				restoring architect, Leopoldo Torres Balbás, with its double 
				walled enclosure it constitutes the prototype of the military 
				architecture of the 12th and 13th centuries, its only parallel 
				being the Alcazaba of Málaga that belongs to the Spanish Taifal 
				period, in the 11th century.
The Hospitallers began 
				rebuilding the castle in the 1140s and it was finished by 1170 
				when an earthquake damaged the castle. The order controlled a 
				series of castles along the border of the county of Tripoli, a 
				state founded after the First Crusade. The Crac de los 
				Caballeros was among the most important, and acted as an 
				administration center as well as a military base. After the 
				second phase of construction was undertaken in the 13th century, 
				the Crac de los Caballeros had become a concentric castle. This 
				phase created the outer wall and gave the castle its current 
				appearance. The first half of the century has been described as 
				the "golden age" of the Crac de los Caballeros. At its peak, it 
				housed a garrison of around two thousand knights. Such a large 
				garrison allowed the Hospitallers to obtain tribute from a wide 
				area. From the 1250s the fate of the Hospitallers worsened and 
				in 1271 the Mamluk sultan Baibars captured the Crac of the 
				Knights after a siege that lasted 36 days, supposedly thanks to 
				a forged letter from the Grand Master of the Hospitallers that 
				caused the knights to flee. they gave up.
Renewed 
				interest in Crusader castles in the 19th century led to 
				investigation of the Crac de los Caballeros, and architectural 
				plans were drawn up. In the late 19th or early 20th century, a 
				settlement had been created within the castle, causing damage to 
				its factory. The 500 inhabitants were moved in 1933 and the 
				castle was handed over to the French state, which carried out a 
				program of cleaning and restoration. When Syria declared its 
				independence in 1946, it assumed control of the place.
				Currently, there is a town called al-Husn around the castle and 
				it has a population of about 9,000 people. The Crac de los 
				Caballeros is located approximately 40 km west of the city of 
				Homs, near the Lebanese border, and is administratively part of 
				the Homs Governorate.
It was included by UNESCO in the 
				World Heritage Site in 2006 along with Saladin Castle. It was 
				partially damaged in the Syrian civil war by bombing. On June 
				20, 2013, UNESCO included all Syrian sites on the list of World 
				Heritage in Danger to warn of the risks to which it was exposed 
				by the war. Syrian government forces recaptured it in 2014. 
				Since then, reconstruction and conservation work has been 
				undertaken. Both UNESCO and the Syrian government have issued 
				annual reports on the state of the site.
The modern Arabic word for a castle is Kalaa (Arabic: قلعة), but the Crac of the Knights is known as a "Hosn" (Arabic: حصن), or "fort". This derives from the name of an earlier fortification at the same location called Ḥoṣn al-Akrād (Arabic: حصن الأكراد), which meant "fort of the Kurds". It was called by the Franks in French: Le Crat and then by a confusion with karak (fortress), French: Le Crac. Crat was probably the Frankish version of Akrād, the word for the Kurds. After the Hospitallers took control of the castle, it became known as in French: Crac de l'Ospital; The French name: Crac des Chevaliers (alternatively written in French: Krak des Chevaliers) was introduced by Guillaume Rey in the 19th century.
The castle is located on top of a hill 650 meters above sea level. n. 
		m. east of Tartus, Syria, in the Hole of Homs. Across the hole, 27 km 
		away, was the 12th-century castle of Gibelacar (Hisn Ibn Akkar). The 
		route through the strategically important Hole of Homs connects the 
		cities of Tripoli and Homs. To the north of the castle is Jebel 
		Ansariyah, and to the south is Lebanon. The surrounding region is 
		fertile, benefiting from streams and abundant rainfall. Compared to the 
		kingdom of Jerusalem, the other Crusader states had less land suitable 
		for agriculture; However, the limestone peaks of Tripoli were suitable 
		for defensive sites.
Property of the county of Tripoli, given to 
		the knights in the 1140s, including the Crac de los Caballeros, the 
		cities of Rafanea and Montferrand, and the Bekaa plain separating Homs 
		and Tripoli. Homs was never under Crusader control, so the region around 
		Crac de los Caballeros was vulnerable to expeditions from the city. 
		While its proximity caused problems for the knights in relation to 
		defending their territory, it also meant that Homs was close enough for 
		them to sack. Because the castle dominated the plain, it became the most 
		important base for knights in the area.
According to the 13th-century Arab historian Ibn Shaddad, in 1031, 
		the Mirdasid emir of Aleppo and Homs, Shibl ad-Dawla Nasr, established a 
		settlement of Kurdish tribal men at the site of the castle, which was 
		then known as "Ḥiṣn al- Safḥ." Nasr restored Hisn al-Safh to help 
		reestablish Mirdasid access to the coast of Tripoli after they lost 
		nearby Hisn Ibn Akkar to the Fatimids in 1029. Because Nasr housed a 
		Kurdish garrison At the site, the castle became known as "Ḥiṣn al-Akrād" 
		(Castle of the Kurds). The castle was strategically located on a spur of 
		the Syrian desert, at the southern end of the Jibal al-Alawiyin mountain 
		range and dominated the road between Homs and Tripoli. When it came to 
		building castles, engineers often chose elevated locations, such as 
		hills and mountains, which provided natural obstacles.
From this 
		castle the route that linked the Syrian city of Homs (under Muslim rule) 
		with Tripoli (Lebanon), capital of the county of the same name, on the 
		Mediterranean coast, was protected. In addition to controlling the route 
		to the Mediterranean, the Knights Hospitaller exerted some influence 
		over Lake Homs to the east, where they could have controlled the fishing 
		industry and watched over the Muslim armies gathering in Syria.
		It was captured by Raymond IV of Toulouse in January 1099 during the 
		First Crusade, on his journey to Jerusalem but was abandoned when the 
		crusaders continued their route towards Jerusalem. Raymond's forces were 
		attacked by the garrison of Hisn al-Akrad, the precursor of Crac, who 
		was ravaging Raymond's foragers. The next day Raymond marched towards 
		Jerusalem. Permanent occupation began in 1110 when Tancred of Galilee 
		assumed control of the site. The early castle was substantially 
		different from the existing remains, and no trace of this early castle 
		remains at the site.
The origins of the Knights Hospitaller are 
		unclear, but the order probably emerged around the 1070s in Jerusalem. 
		It began as a religious order that cared for the sick, and later cared 
		for pilgrims in the Holy Land. After the success of the First Crusade in 
		capturing Jerusalem in 1099, many crusaders donated their new property 
		in the Levant to St. John's Hospital. Among the first donations were in 
		the newly formed Kingdom of Jerusalem, but over time the order extended 
		its possessions to the Crusader states of the County of Tripoli and the 
		Principality of Antioch. There is evidence to suggest that in the 1130s 
		the order became militarized when Fulk, king of Jerusalem, granted the 
		newly built castle at Beth Gibelin to the order in 1136. A papal bull 
		from between 1139 and 1143 may indicate that The order hired people to 
		defend the pilgrims. There were other military orders, such as the 
		Knights Templar, which offered protection to pilgrims.
Between 
		1142 and 1144, Raymond II, Earl of Tripoli, gave the Knights Hospitaller 
		property in the county. According to historian Jonathan Riley-Smith, the 
		Hospitallers effectively established a "palatinate" within Tripoli. The 
		property included castles with the that the Hospitallers were expected 
		to defend Tripoli. Along with the Crac of the Knights, the Hospitallers 
		received four other castles along the state's borders that allowed the 
		order to dominate the area. The order's agreement with Raymond II stated 
		that if he did not accompany the order's knights on campaign, the spoils 
		belonged entirely to the order, and if he was present it was divided 
		equally between the count and the order. Raymond II could not make peace 
		with the Muslims without the permission of the Hospitallers. The 
		Hospitallers made Crac de los Caballeros an administrative center for 
		their new property, undertaking work on the castle that would turn it 
		into one of the most elaborate Crusader fortifications. in the Levant.
		
After acquiring the site in 1142, they began building a new castle 
		to replace the old Kurdish fortification. This work lasted until 1170, 
		when an earthquake damaged the castle. An Arab source mentions that the 
		earthquake destroyed the castle chapel, which was replaced by the 
		current chapel. The knights built an imposing fortress, the largest in 
		the Holy Land, which withstood at least twelve assaults by the Muslims.
In 1163, the fortress was unsuccessfully besieged by Nur al-Din at 
		the Battle of al-Buqaia near the Crac of the Knights. After this 
		victory, the Hospitallers became a virtually independent force on the 
		border of the county of Tripoli. Drought conditions between 1175 and 
		1180 prompted the crusaders to sign a two-year truce with the Muslims, 
		but without Tripoli being included in its terms. During the 1180s, 
		Christian and Muslim attacks on each other's territory became more 
		frequent.
In 1180, Saladin entered the county of Tripoli, 
		plundering the area. Unwilling to engage him in an open field battle, 
		the crusaders retreated to the relative safety of their fortifications. 
		Without capturing the castles, Saladin could not secure control of the 
		area, and once he retreated, the Hospitallers were able to revitalize 
		their damaged lands. The Battle of Hattin in 1187 was a disastrous 
		defeat for the Crusaders: Guy de Lusignan, king of Jerusalem, was 
		captured, as was the True Cross, a relic discovered during the First 
		Crusade. Saladin then ordered the execution of the captured Knights 
		Templar and Hospitaller, such was the importance of the two orders in 
		defending the Crusader states. After the battle, the Hospitaller castles 
		of Belmont, Belvoir and Bethgibelin fell into the hands of Muslim 
		armies. After these losses, the order turned its attention to its 
		castles in Tripoli.
It was besieged, also unsuccessfully, by 
		Saladin in May 1188. Upon seeing the castle, he decided that it was too 
		well defended and instead marched to the hospitable castle of Margat, 
		which he also failed to capture.
In 1202 an earthquake affected 
		part of the fortifications, so a profound restructuring was undertaken 
		shortly after. The work of the 13th century was the last period of 
		construction in the Crac de los Caballeros and gave it its current 
		appearance. A closed stone circuit was built between 1142 and 1170; The 
		previous structure became the inner enclosure of the castle. If there 
		was a walled circuit around the inner courtyard prior to the current 
		outer walls, no trace of it has been discovered.
The first half 
		of the 13th century has been characterized as the "golden age" of the 
		Crac de los Caballeros. While other Crusader fortresses became 
		threatened, the Crac de los Caballeros and its garrison of some two 
		thousand soldiers dominated the entire region around it. It was 
		effectively the center of a principality that remained in Crusader hands 
		until 1271 and was the only continental region of respectable size to 
		remain consistently under Crusader control during this period. Crusaders 
		passing through the area often stopped at the castle, and possibly made 
		donations to it.
Godfrey of Joinville, uncle of the famous 
		chronicler of the crusades Jean de Joinville, died in the Crac des 
		Chevaliers in 1203 or 1204 and was buried in the castle chapel.
		The main contemporary accounts in relation to the Crac of the Knights 
		are of Muslim origin and tend to emphasize Muslim success while ignoring 
		the setbacks and defeats against the crusaders although they suggest 
		that the Knights Hospitaller forced them to pay tribute to the Order. 
		the settlements of Hama and Homs. The situation lasted while Saladin's 
		successors quarreled among themselves. The proximity of Crac de los 
		Caballeros to Muslim territories allowed it to assume an offensive role, 
		acting as a base from which to attack neighboring areas. By 1203 the 
		garrison was making raids on Montferrand (which was under Muslim 
		control) and Hama, and in 1207 and 1208 the castle's soldiers took part 
		in an attack on Homs.
In 1217-1218, during the Fifth Crusade, 
		King Andrew II of Hungary visited and proclaimed the castle to be the 
		"key to the Christian lands." He was so impressed with the castle that 
		he provided an annual income of 60 marks to the Master and 40 to the 
		brothers; He strengthened the outer walls and financed the guard troops.
		
The Crac of the Knights functioned as a base for expeditions to Hama 
		in 1230 and 1233 after the amir refused to pay tribute. The first was 
		not successful, but the expedition of 1233 was a true display of 
		strength that demonstrated the importance of the Crac de los Caballeros.
		
In the decade of the 1250s, the conditions of the hospitalers of the 
		Crac de los Caballeros worsened. A Muslim army of approximately 10,000 
		men plundered the countryside around the castle in 1252 after which the 
		order's finances declined sharply. In 1268 Master Hugh Revel complained 
		that the area, once home to 10,000 people, was now deserted and that the 
		Order's property in the kingdom of Jerusalem produced little income. He 
		also noted that by then there were only 300 brothers of the Order in the 
		east. On the Muslim side, in 1260 Baibars became sultan of Egypt, after 
		overthrowing the then ruler, Qutuz, and proceeded to unite Egypt and 
		Syria. As a result, Muslim settlements that had previously paid tribute 
		to the Hospitallers in the Crac de los Caballeros no longer felt 
		intimidated into doing so.
Baibars entered the region around Crac 
		de los Caballeros in 1270 and allowed his men to graze his animals in 
		the fields around the castle. When he learned of the Eighth Crusade, led 
		by King Louis IX of France, Baibars left for Cairo to avoid 
		confrontation.
After Louis died in 1272, and that crusade was 
		considered unsuccessful, Baibars returned to face the Crac de los 
		Caballeros. At that time the garrison of men was scarce, and sending aid 
		from the west was impossible.
Before marching on the castle, the 
		sultan captured minor castles in the area, including Chastel Blanc. On 
		March 3, Baibars' army arrived at Crac de los Caballeros. By the time 
		the sultan appeared on the scene, the castle may have already been 
		blockaded by Mamluk forces for several days. Of the three Arab accounts 
		that recount the siege , only one is contemporary, that of Ibn Shaddad, 
		although he was not present at the site. The peasants who lived in the 
		area had fled to the castle for safety and were kept in the outer 
		compound. As soon as Baibars arrived he erected manganas, powerful 
		assault weapons that he would later return on the castle. In a probable 
		reference to the walled suburb outside the castle entrance, Ibn Shaddad 
		documents that two days later the first line of defense fell to the 
		besiegers.
Rain interrupted the siege, but on March 21, 
		immediately south of Crac de los Caballeros, Baibar's forces captured a 
		triangular outer work, possibly defended by a wooden palisade. On March 
		29, Baibars' forces mined the southwest tower of the outer wall until it 
		collapsed. Baibars' army attacked through that gap. In the outer 
		enclosure they met the peasants who had taken refuge in the castle. 
		Although the outer enclosure had fallen, with a handful of defenders 
		killed in the process, the crusaders retreated to the more formidable 
		and imposing inner enclosure, which blocked the way to the attackers.
		
Baibars, not wanting to accept defeat or the possibility of a long 
		siege, resorted to cunning. After a respite of ten days, according to 
		Arab historians, he used a dove to send a false letter to the castle. 
		The message claimed to come from the Grand Master of the Hospitaller 
		Order and ordered the surrender of the troops, since it was not possible 
		to send them any help there. The order was obeyed and Baibars was able 
		to capture the fortress. Furthermore, he chivalrously granted the 
		garrison safe conduct to travel to Tripoli.
Baibars refortified 
		the fortress, focusing repairs mainly on the external enclosure. The 
		hospital chapel was converted into a mosque and two mihrabs were added 
		inside. Baibars used the Crac as a base in his campaign against Tripoli.
The Mamluks used the Knights' Crac in their attack on Saint John of 
		Acre in 1291. After the Franks were expelled from the Holy Land in 1291, 
		European familiarity with Crusader castles declined. It was not until 
		the 19th century that interest in these buildings was renewed, so there 
		was no detailed plan before 1837. Guillaume Rey was the first European 
		researcher to scientifically study the Crusader castles in the Holy 
		Land. In 1871 he published the work Etudes sur les monuments de 
		l'architecture militaire des Croisés en Syrie et dans l'ile de Chypre; 
		included plans and drawings of the main Crusader castles in Syria, 
		including the Crac de los Caballeros. In some extremes, his drawings 
		were imprecise, however for the Crac de los Caballeros he reflected 
		features that have since been lost.
Paul Deschamps visited the 
		castle in February 1927. Since Rey had visited it in the 19th century, a 
		village of 500 inhabitants had settled inside the castle. This renovated 
		room had damaged the place: the underground vaults were used to 
		accumulate garbage and in some places the battlements had been 
		destroyed. Deschamps and his colleague, architect François Anus, 
		attempted to clean up some of the waste; General Maurice Gamelin 
		assigned 60 Alawite soldiers to help. Deschamps left in March 1927, and 
		work resumed when he returned two years later. The culmination of 
		Deschamp's work on the castle was the publication of Les Châteaux des 
		Croisés en Terre Sainte I: le Crac des Chevaliers in 1934, with detailed 
		plans drawn up by Anus. This research has been highly praised, described 
		as "brilliant and exhaustive" by military historian D. J. Cathcart King 
		in 1949 and "perhaps the best account of the archeology and history of a 
		single medieval castle ever written" by historian Hugh Kennedy in 1994.
		
As early as 1929 it was suggested that the castle should be 
		controlled by the French. On November 16, 1933, the Crac des Chevaliers 
		was handed over to the control of the French state, and was cared for by 
		the Académie des Beaux-Arts. The locals were relocated and paid one 
		million francs as compensation. Over the next two years a clean-up and 
		restoration program was carried out by a force of 120 workers. Once 
		completed, the Crac des Knights was one of the main tourist attractions 
		in the French Levant. Pierre Coupel, who had undertaken similar work on 
		the Tower of Lions and the two castles in Sidon, supervised the works. A 
		Despite the restoration, no archaeological excavations were carried out. 
		The French Mandate of Syria, which had been established in 1920, ended 
		in 1946 with Syria's declaration of independence. The castle was made a 
		UNESCO World Heritage Site, along with the Saladin Citadel (Qal'at Salah 
		El-Din), in 2006, and is owned by the Syrian government.
Several 
		of the castle's former residents built their homes outside the fortress 
		and a village called al-Husn has since developed. Many of al-Husn's 
		approximately 9,000 Muslim residents benefit economically from the 
		tourism generated by the site. .
Until the second decade of the 
		21st century, the castle remained remarkably well preserved and was a 
		tourist attraction, but during the Syrian civil war, which began in 
		2011, it was the center of numerous combats, especially between 2012 and 
		2013. UNESCO expressed concern that the war could lead to damage to 
		important cultural sites such as the Crac de los Caballeros. Its walls 
		have suffered damage of varying degrees from attacks with mortars, 
		rockets and automatic weapons of different calibers. It was the subject 
		of bombings in August 2012 by the Syrian Arab Army, and the cross chapel 
		has been damaged.
Throughout 2013, the rebels have used the 
		castle as a military base to attack, causing the government to maintain 
		powerful bombing raids on the castle. These attacks have devastated the 
		site and left it in ruins. Damage was documented in July 2013 from an 
		airstrike during the siege of Homs, and again on August 18, 2013 it was 
		clearly damaged but still unknown. how far the destruction has gone. The 
		Syrian army recaptured al-Hosn castle and village from rebel forces on 
		March 20, 2014. Since then, both UNESCO and the Syrian government have 
		produced regular reports on the state of the site, calling for 
		reconstruction measures and conservation.
Writing in the early 20th century, T. E. Lawrence, popularly known as 
		Lawrence of Arabia, noted that Knights Crac was "perhaps the best 
		preserved and most admirable castle in the world," [a castle that] forms 
		a suitable commentary in any account. on the Crusader buildings of 
		Syria. Castles in Europe provided stately accommodation for their owners 
		and were administrative centers; In the Levant the need for defense 
		prevailed above all and was reflected in the design of castles. Kennedy 
		suggests that "The castle scientifically designed as a proper machine 
		surely reached its apogee in great buildings like the Margat and the 
		Crac des Chevaliers."
The Crac de los Caballeros can be 
		classified as both a spur castle due to the terrain on which it is 
		located, and after the expansion of the 13th century a fully developed 
		concentric castle. It was of a similar size and shape to Jacob's Ford, a 
		Crusader castle built in the late 1170s. Margat has also been cited as a 
		twin castle to Crac de los Caballeros. The main construction material 
		was limestone; The ashlar coating is so thin that the mortar is barely 
		noticeable. Outside the castle entrance there was a "walled suburb" 
		known as a burgus, of which no remains remain. To the south of the 
		external enclosure there was a triangular outer work and the crusaders 
		may have intended to build walls and towers around it. It is not known 
		how it was defended at the time of the siege of 1271, although it has 
		been suggested that it was surrounded by a wooden palisade. To the south 
		of the castle the spur on which it stands is connected to the 
		neighboring hill, so that the Siege engines could approach ground level. 
		The internal defenses are strongest at this point, with a cluster of 
		towers connected by thick walls.
The second phase of construction undertaken by the Hospitallers began 
		at the beginning of the 13th century and lasted for decades. The outer 
		walls were built in the largest construction carried out in the place, 
		giving Crac de los Caballeros its current appearance. With a height of 9 
		meters, the outer enclosure has towers that protrude markedly from the 
		wall. It is 3 m wide with seven towers 8-10 m wide. Create a concentric 
		fortress. While the towers of the inner enclosure have a square plan and 
		did not protrude from the wall, the towers of the 13th century were 
		round. This design was new and even contemporary Templar castles did not 
		have rounded towers. The technique was developed at Château Gaillard in 
		France by Richard the Lionheart between 1196 and 1198. The extension 
		towards the southeast is of lesser quality than the rest of the circuit 
		and was built on an unknown date. Probably around 1250 a back door was 
		added to the north wall.
Loopholes in the walls and towers are 
		distributed to minimize the amount of dead ground around the castle. 
		They crowned the walls with machicolations, offering defenders a way to 
		hurl projectiles at enemies at the foot of the wall. They were so tight 
		that the archers would have to hunch over inside them. The boxed 
		machicolations were unusual: those at Crac de los Caballeros were more 
		complex than those at Saône or Margat and there are no similar features 
		among the Crusader castles. However, they had similarities with Muslim 
		works, such as the contemporary defenses at the Citadel of Aleppo. It is 
		not clear which side imitated the other, as the date on which they were 
		added to the Crac de los Caballeros is unknown, but it provides evidence 
		of the diffusion of military ideas between Christian and Muslim armies. 
		These defenses were reached by a circular path. In the opinion of 
		historian Hugh Kennedy the defenses of the outer walls were "the most 
		elaborate and developed anywhere in the Latin Levant... the whole 
		structure is brilliantly designed and a superbly built fighting 
		machine."
The steep slopes of the spur were used for tactical 
		purposes. Although the cliff on which it was located provided an ideal 
		location, a fortification located at this point had two weak points: the 
		main gate and the southern flank, open to the plain. To protect this 
		exposed side, a masonry wall with three large towers was built, preceded 
		by an enormous masonry parapet that in some areas measured 25 meters 
		thick.
When the outer walls were built in the 13th century the 
		main entrance was improved. A vaulted corridor led uphill from the outer 
		gate on the northeast. The problem of the entrance was solved by having 
		access to it built in a zigzag pattern up the steep slope, so that a 
		potential invader would expose himself during his assault to the fire. 
		of the adversaries. Thus it was made an example of a curved entrance. 
		This type of entrance was a Byzantine innovation, but the Crac de los 
		Caballeros was a particularly complex example. It extended for 137 
		metres, and along its entire length there were "murder holes" that 
		allowed the defenders to bathe the soldiers. attackers into projectiles. 
		Anyone who went straight ahead rather than following the hairpin turn 
		would emerge in the area between the two circuits of castle walls. To 
		access the inner area, the passage had to be followed.
Between 
		the outer and inner doors, a narrow corridor between colossal walls and 
		defenses. The possibility of surrendering the fortress by siege was also 
		useless. The fortress had a 120-meter-long warehouse and additional 
		warehouses dug into the cliff below the fortress, where enough water and 
		food were stored to sustain a garrison of 2,000 men for a long time. It 
		is estimated that it could have withstood a five-year siege.
Between 1142 and 1170 the Knights Hospitaller carried out a building 
		program at the site. The castle was defended by a curtain studded with 
		square towers that project slightly. The main entrance was between the 
		two towers on the eastern side, and there was a postern in the northwest 
		tower. In the center was a courtyard surrounded by vaulted chambers. The 
		layout of the land determined the irregular shape of the castle. A site 
		with natural defenses was a typical location for Crusader castles, and 
		sloping slopes provided the Crac de los Caballeros with defenses on all 
		sides except one, where the castle's defenses were concentrated. This 
		construction phase was incorporated into the later construction of the 
		castle.
When the Crac de los Caballeros was remodeled in the 13th 
		century, new walls were built surrounding the inner courtyard. The 
		previous walls remained, with a narrow gap between them in the west and 
		south that was converted into a gallery from which the defenders could 
		fire projectiles. In this area, the walls were supported by sloping 
		glacis that provided additional protection against both siege weapons 
		and earthquakes. Four large round towers project vertically from the 
		glacis; They were used as a place of residence for the knights of the 
		garrison, around 60 at their peak. The southwest tower was designed to 
		house the quarters of the grand master of the Knights Hospitaller. 
		Although the defenses that in the past topped the walls of the inner 
		courtyards are no longer preserved in most places, it seems that they 
		did not extend throughout the entire circuit. The machicolations on the 
		southern face are absent. The area between the inner enclosure and the 
		outer walls was narrow and was not used for habitation. In the east, 
		where the defenses were weaker, there was an open cistern filled by an 
		aqueduct. It acted as both a moat and water supply for the castle.
		
At the northern end of the small patio there is a chapel and at the 
		southern end an esplanade. The esplanade is raised above the rest of the 
		patio; the vaulted area below would have provided storage and may have 
		acted as stables and shell shelter. Aligning the west of the courtyard 
		is the knights' hall. Although probably first built in the 12th century, 
		the interior dates back to the 13th century. The tracery and delicate 
		decoration is a sophisticated example of Gothic architecture, probably 
		dating from the 1230s.
The present chapel was probably built to replace the one destroyed by an earthquake in 1170. Only the eastern end of the original chapel, which housed the apse, and a small part of the south wall survive of the original chapel. The chapel Later it had a barrel vault and an uncomplicated apse; Its design would have been considered old-fashioned by contemporary standards in France, but it has similarities to the one built around 1186 at Margat. It was divided into three approximately equal compartments. A cornice runs through the chapel at the point where the vault ends and the wall begins. Oriented approximately east to west, it was 21.5 meters long and 8.5 meters wide with the main entrance from the west or a second smaller one on the north wall. When the castle was renovated at the beginning of the 12th century, the entrance was moved to the south wall. The chapel was lighted by windows above the cornice, one at the west end, one on each side of the east recess, and one on the south side of the central recess, and the apse at the east end had a large window. In 1935 a second chapel was discovered outside the main entrance to the castle, however it no longer exists.
Despite its predominantly military character, the fortress is one of 
		the few places where Crusader art has been preserved, in the form of 
		frescoes. Edward I of England, during the Ninth Crusade in 1272, saw the 
		fortress and used it as an example of his own castles in England and 
		Wales. According to T.E. Lawrence, the Crac de los Caballeros is "the 
		most admirable castle in the world."
In 1935, 1955, and 1978 
		medieval frescoes were discovered inside the Crac de los Caballeros 
		after deteriorating plaster and subsequent whitewashing. The frescoes 
		were painted inside and outside the main chapel and the chapel outside 
		the main entrance, which no longer exists. Writing in 1982, historian 
		Jaroslav Folda noted that at the time there had been little research 
		into cross frescoes that would provide a comparison with the fragmentary 
		remains at the Crac de los Caballeros. Those in the chapel were painted 
		on the masonry of the reconstruction of 1170–1202. Mold, smoke and 
		humidity have made it difficult to preserve the frescoes. The 
		fragmentary nature of the red and blue frescoes within the chapel means 
		that they are difficult to value. The one outside the chapel represented 
		the Presentation of Jesus in the Temple.