Wiedersberg Castle was built around 1200 to protect the route from Plauen to Hof. The first documentary evidence dates from 1267. The castle is considered the ancestral home of the barons Wiedersperger. The castle was expanded after 1300 and fell into disrepair from 1500. In the 16th century, a mansion in the Renaissance style was built in the valley in the local area. Today the ring wall and gate tower remain, as well as some vaulted cellars and the surrounding walls. The double neck ditch carved into the rock and the gate drive of the gate tower, which swings around 90 degrees in the tower, are remarkable.
References:The Chapel of St. Martin is the only completely preserved Romanesque building in Vyšehrad and one of the oldest in Prague. In was built around 1100 in the eastern part of the fortified outer ward. Between 1100 and 1300, the Rotrunda was surrounded by a cemetery. The building survived the Hussite Wars and was used as the municipal prison of the Town of the Vyšehrad Hill.
During the Thirty Years’ War, it was used as gunpowder storage, from 1700 to 1750, it was renovated and reconsecrated. In 1784, the chapel was closed passed to the military management which kept using it as a warehouseand a cannon-amunition manufacturing facility. In 1841, it was meant to be demolished to give way to the construction of a new road through Vyšehrad. Eventually, only the original western entrance was walled up and replaced with a new one in the sountren side. The dilapidating Rotunda subsequently served as a shelter for the poor.