The first Silkeborg Castle, a primitive wooden building surrounded by palisades, was built in 1385. It was later replaced by a stone building, and again in the early 16th century by a main building in stone, a courtyard and a stable yard. Silkeborg Castle received royal visits on several occasions. Both Frederik II and Christian IV were regular overnight guests in the main building “Det Store Stenhus” (the great stone house), during hunting trips and the like in Central Jutland. The castle was badly damaged during the Swedish wars in the 17th century, when Silkeborg was occupied by Swedish troops, who ravaged the castle buildings, no fewer than three times. Having been in a state of disrepair for years, the last remains of the castle were demolished in 1726. Today, the layout of both the main building and the courtyard is marked by embankments. There is access to the area via a bridge across the River Gudenå at Lake Silkeborg Langsø and from the Papirfabrikken area.
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.