Hardegg Castle was originally found in the 11th
century and first appeared in the official documents in 1145.
Original owners of the medieval citadel were Counts of Plain und
Hardegg. Original central fortres was increased. A palace, several
towers and a small chapel were added. Even though it was repaired
and new additions has been made, it still preserves some of the
Hardegg Castle is often associated with Emperor
Maximilian of Mexico, a younger brother of Emperor Francis Joseph I.
A small exposition of the several artifacts is devoted to life of a
future emperor before accepting the crown that eventually led him to
death by a firing squad.