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House of the Trebius Valens, Pompeii

Location: Regio III, Insula 2
Area: 540 square meters
Rooms: 15

The House of Trebius Valens (Casa di Aulus Trebius Valens or Casa di Trebius Valens, Regio III.2.1) is one of Pompeii’s well-documented atrium-peristyle domus, located on the north side of the bustling Via dell’Abbondanza. It offers a vivid snapshot of upper-middle-class or elite local Roman family life, civic engagement, and domestic architecture in the decades leading up to the eruption of Mount Vesuvius in 79 CE.
The house takes its modern name from its final known owner, Aulus Trebius Valens (often shortened to Trebius Valens in inscriptions), a prominent Pompeian citizen actively involved in local politics. The Trebii family (Trebii) itself had deep roots in Pompeii as one of the city’s most powerful families, influential both before the Roman conquest (during the Samnite/Oscan period) and in the late Republican/early Imperial era. While the surviving structure primarily dates to the 1st century BCE (Republican period, after Sulla’s colonization of Pompeii in 89 BCE), the family’s prominence likely extended back to the Samnite phase of the city (c. 5th–2nd centuries BCE), when Pompeii was an Oscan-speaking settlement with Samnite cultural and political dominance.

History

The house's origins trace back to the Republican period (likely 1st century BC), when Pompeii was a thriving Roman colony after its conquest by Sulla in 89 BC. It underwent expansions, including the addition of a peristyle garden inspired by Greek architectural elements, reflecting the cultural influences in Pompeii during the late Republic and early Empire. The Trebius family, active in Pompeii before and after Roman colonization, is associated with the property through inscriptions like "Valens fac" (Valens, do it/make it), suggesting political campaigning. During the 79 AD eruption, the front door was found closed, with locking mechanisms intact, indicating the inhabitants may have fled or perished elsewhere.
Excavations began in 1913 under Vittorio Spinazzola, focusing on the Via dell'Abbondanza facade, and continued in 1915, revealing the house's layout and decorations. Key finds were documented in publications like Notizie degli Scavi di Antichità (1914-1915), including door hardware discovered on January 3, 1914. The site suffered significant damage during World War II when Allied bombs struck Pompeii on September 19, 1943: one bomb hit the atrium, destroying the west wall and erasing much of the facade's graffiti, while another devastated the southeast section. Post-war restorations in the 1950s and later preserved surviving elements, such as a small portion of the east facade's inscriptions, but the house's conservation remains ongoing, with documentation in works like Garcia y Garcia's "Danni di guerra a Pompei" (2006).

Architecture

Overall Plan and Architectural Style
The house follows the standard atrium-peristyle plan typical of affluent Pompeian domus, blending Italic traditions (the atrium for public reception and business) with Hellenistic influences (the peristyle garden for private family life and leisure). It has a narrow street façade (common due to dense urban blocks) that expands dramatically inward, emphasizing axial symmetry for impressive vistas from the street through the atrium and tablinum into the peristyle garden. The total area is approximately 540 m² with around 15 rooms (including service areas).

Key structural features include:
Opus incertum or reticulatum masonry walls (typical Pompeian construction using local stone and mortar).
Cocciopesto floors (often with geometric tile inserts).
Extensive use of frescoed plaster walls (Second Style in early bedrooms for illusionistic architecture; later Fourth Style and geometric motifs elsewhere).
Sophisticated water and light management: rainwater collection, fountains, and strategic openings for ventilation and illumination.

A reconstructed floor plan and longitudinal section (based on archaeological documentation) illustrate the axial layout, atrium-to-peristyle flow, and private bath suite.

Façade and Entrance (Fauces/Vestibule)
The street façade was originally plastered and densely covered in red-and-black painted electoral programmata (endorsements for local office) and edicta munerum (advertisements for gladiatorial games, including announcements of 20 pairs of gladiators, hunts, and awnings). These inscriptions gave the house a highly public, political character. Many were lost in the 1943 bombing; surviving east-side fragments (e.g., CIL IV references) were restored.
The central doorway featured two travertine steps, a bronze cylindrical doorbell with iron clapper, and full door hardware (lock, key, bolt, and handle). A short fauces (entrance passage) led directly into the atrium, creating a dramatic transition from the noisy street to the cool, light-filled interior.

Atrium (Room 1, Central Hall)
The heart of the house was a Tuscan-style atrium (open to the sky via a compluvium roof opening) with a central impluvium basin that collected rainwater for a cistern below. This provided natural light, ventilation, and water for household use. Doorways opened to cubicula (bedrooms) and other rooms on the sides.

Notable surrounding rooms:
Cubiculum 2 (southwest/left side): Bedroom with exceptional Second Style frescoes (illusionistic architectural motifs, ca. 80–20 BC). The name “Valens” is scratched into the plaster, confirming ownership.
Cubiculum (west/right side, possibly Room 4): Likely the mistress’s bedroom; a casket of jewelry and ointment jars was found here.
Room 3: Contained a staircase to the upper floor and a cupboard recess beneath.
A rectangular hall/ala on the right side featured walls painted with birds and animals.

Tablinum
Positioned directly opposite the entrance at the rear of the atrium, this was the formal reception/study room of the paterfamilias. It featured a large window or opening that framed a view into the peristyle, enhancing the sense of depth and status. Its walls were decorated with a distinctive (almost unique) geometric pattern of colored squares in green, yellow, red, and white.

Corridor and Peristyle Garden
A corridor beside the tablinum led to the peristyle—a colonnaded courtyard surrounding an open garden with fountains, water channels (“water-works”), and plantings. This Hellenistic-style space was the private heart of the house, used for relaxation, dining, and entertaining.
The peristyle walls featured checkerwork/geometric frescoes and a famous graffito quoting the opening line of Virgil’s Aeneid (“Arma virumque cano…”). At the rear of the garden stood a summer triclinium (outdoor dining room) under a bower/pergola supported by columns, complete with additional fountains for cooling and ambiance.

Service Areas, Kitchen, and Private Baths
Service rooms were grouped toward the rear and southeast:
Kitchen (Room 11): Equipped with a hearth, latrine, and praefurnium (furnace/boiler) that supplied hot water and heat to the baths.
Private Bath Suite (southeast corner): A rare luxury in a non-villa domus. It included a small tepidarium (warm room) and an apsed caldarium (hot room) with space for a bath basin (labrum). An apodyterium (changing room) was likely adjacent. This suite demonstrates the owner’s wealth and desire for personal comfort.

Upper Floor
A partial upper story (accessed via stairs in Room 3) likely contained additional bedrooms or storage, a common feature in Pompeian houses for expanding living space without enlarging the ground footprint.

Architectural Significance
The House of Trebius Valens exemplifies the evolution of Pompeian domestic architecture: a compact urban domus that integrates public display (façade inscriptions, grand atrium vistas) with private luxury (peristyle garden, private baths, refined water features). Its axial design creates theatrical sightlines, while the fresco program (from illusionistic Second Style to geometric motifs) reflects changing tastes from Republic to Empire. The surviving elements—despite WWII damage—offer valuable insight into how elite Pompeians lived, blending status, politics, and everyday comfort.