Angerbach, Castle ruin in Kožlany, Czech Republic.

Angerbach is a castle ruin near Kožlany with stone foundations and wall remnants standing on elevated ground, revealing medieval building methods. The remaining structures can be viewed from marked pathways and allow visitors to see the original layout of the building.

Angerbach was founded around the mid-13th century, probably after 1238, when King Wenceslaus I acquired the town of Kožlany while securing power in the Přemyslid hunting forest. No written records survive from its existence. Its earth-and-timber ramparts needed constant upkeep, and the castle was likely abandoned at the start of the 14th century.

The name Angerbach is a German variant of the name of nearby Týřov Castle, and the Týřovský rybník pond between Kožlany and Kralovice points to Angerbach's link with the Týřov estate. Eighteenth-century sources were the first to connect the name with this site near Kožlany.

The site lies on a promontory above the confluence of the Javornice and Hradecký potok, about one kilometre north-east of Kožlany, at an elevation of 400 metres. The core of the castle is cut off at the rear by a pair of ditches, and the terrain is uneven, so sturdy footwear helps. The remains are protected as a cultural monument.

Archaeologists found only about four percent of the animal bones to be from game, which contradicts the idea of Angerbach as a hunting lodge. Nearly half of the poorly preserved metal finds are nails and spikes, and the second ditch yielded fragments of a padlock.