Old Bishop's Palace in Wittstock/Dosse, Medieval castle and heritage monument in Wittstock/Dosse, Germany.

The Old Bishop's Palace (Alte Bischofsburg) in Wittstock/Dosse was begun in 1244 as the residence of the bishops of Havelberg, who lived here from 1271 to 1548. Of the complex, the 13th-century gate tower survives; over time it served as an official residence, cowshed, granary and youth hostel, and now houses part of the Ostprignitz Museum. The castle formed part of the town wall, a brick circuit over 2.5 km long that still encloses almost all of Wittstock.

The castle was built in 1244 to serve as a residence for the bishops of Havelberg. Over the centuries it became an important administrative center in the Brandenburg region.

The name Alte Bischofsburg is used although no newer bishop's castle exists. Since 1998 the building has housed the Museum of the Thirty Years' War, the only museum in Germany devoted to that conflict, with an anti-war focus on the suffering of soldiers and civilians. A historic schoolroom furnished in old style can be rented by school classes for lessons.

The gate tower from the 13th century is the surviving part of the complex and now holds the Ostprignitzmuseum displays. The museums inside the restored castle include the Museum of the Thirty Years' War, opened in 1998. A historic schoolroom furnished in old style can be rented by school classes for lessons.

The 13th-century gate tower is the only surviving part of the castle complex. Over time it served as an administrative office, a cattle shed, a grain store and a youth hostel before becoming part of the Ostprignitz Museum.