According to Wikipedia, Schloss Thurnau is "one of the largest and most important palace complexes in northern Bavaria". The fortified complex was created in several phases. The oldest part is - after Georg Dehio - the northern part of the Kemenate (1240), which belongs to the (older) lower castle (further extension 16th - 17th century - Fig. 4/5/6).
The (younger) upper castle is in the 17th. From the 18th to the 18th century (Fig. 3); However, you can also find there neo-Gothic parts. Schloss Thurnau had a remarkable collection of books and natural history; Also known and loved was the castle garden with its lime tree avenue, which once inspired Jean Paul. Unfortunately, these treasures are now sold, destroyed or no longer accessible!
From the castle, a wooden connecting gallery, built around 1800, leads directly into the late-Gothic chapel tower church of St. Lawrence. (Fig. 8/9). The nave of the church was the beginning of d. 18th century renewed; The spire was set up at the end of the 19th century. In the choir are the - created at the end of the 16th century - grave monuments to Hans Georg von Giech u. His wife and Wolf Förtsch (Fig. 15).
Sources: G. Dehio, Handbuch der Deutschen Kunstdenkmäler, Munich 1979, p. v. "Thurnau" / Wikipedia s. v. "Castle Thurnau".
Further information: thurnau.de/home