Castle Forstenberg

Forstenberg Castle, also called Forstberg Castle, is the ruin of a high medieval noble castle near the district of Karlstein in the Upper Palatinate market of Regenstauf in the Bavarian district of Regensburg, Germany.
It was probably built in the 13th century by the lords of Forstenberg, who were vassals of the powerful lords of Hohenfels, as their ancestral seat. After 1330, the castle fell to Friedrich den Hofer, who from then on called himself "von Vorchtenberg." A Winhir of the Awaer is referred to as the custodian of Vorchtenberkch in 1387. After several changes of ownership, the castle came into the possession of Landgrave Johann of Leuchtenberg in 1393. He is credited with the creation of a front castle, which was never completed as the castle shortly after went to Jakob Muracher. The castle then passed to a Stephan Deuerlinger. Heinrich Zenger acquired the castle and Karlstein Castle from him in 1460. The expansion of the castle in Karlstein is likely the reason why Forstenberg fell into disrepair. After several changes of ownership, by the 17th century at the latest, the castle had been abandoned and was completely dilapidated.

Wikipedia