is a medieval fortress in the Burgenland province in the Eastern
Austria. Forchtenstein Castle was constructed
in the 15th century by the Lords of Mattersburg who later were known as
Lords of Forchtenstein. They kept its citadel as a site for a treasury
as well as hold control of the area.
Unfortunately the armies of Ottoman Turks apparently discovered its
primary purpose and tried to
storm Forchtenstein Castle on several occasions. They failed, unable to take
impregnable fort. Over the course of the 17th century Nikolaus
Esterházy and his son made extensive additions to the citadel's defenses
to keep up with the improving firearm technology under supervision of
Simon Retacco and later Domenico Carlone. During these renovations a new
treasure vault was constructed. It was intended to store
weapons, archives, machines and exotic animal preparations. Over time
location was forgotten and was rediscovered only during World War II
during reconstruction project.
Today Forchtenstein Castle is open to the public. It houses one
of the largest collections of the medieval weaponry in Europe.