Burg Arnsberg, Medieval castle in Kipfenberg, Germany.

Burg Arnsberg is a stone fortress standing on elevated ground near Kipfenberg, featuring defensive walls, towers, and architectural elements from different centuries. The complex spreads across multiple levels with residential areas, a courtyard, and fortifications that overlook the valley below.

The fortress originated in the 12th century as a strategic stronghold for local nobles who controlled important trade routes through Bavaria. Over generations, the complex was reinforced and rebuilt to defend against changing military threats.

The name Arnsberg comes from the noble family von Arnsberg, first mentioned in 1087 with Gozwin von Arnsberg. The castle later served as a hunting and summer residence for the bishops of Eichstätt. The well-preserved outer bailey now operates as a hotel, while the main castle ruin is freely accessible.

The main castle ruin is freely accessible; the well-preserved outer bailey (Vorburg) now houses a hotel. The site sits on a dolomite rock about 120 m above the village of Arnsberg, and the climb is steep in places. The two-bay bridge at the old southwest gate dates from the Baroque period.

The main castle stands on an isolated rock spur that juts northwest; its oval ring wall of carefully laid limestone survives up to four metres high, though the northeast section fell away in a rockfall. The keep stump at the southeast corner has an irregular pentagonal plan that turns round after about seven metres and rises roughly ten metres, built of dolomite blocks up to 0.60 by 1.40 metres.