Landsöhr Castle
Landsöhr Castle (), also called Landseer Castle ("Burg Landseer") or Bertaburg, is a lost spur castle on a northern spur, , of the Kornberg near Bad Boll in the county of Göppingen in Baden-Württemberg. The castle was probably built during the Celtic period as a refuge castle. The present "burgstall" only consists of two hollows between which the castle was probably located. In the 12th century Berta von Boll, a sister of King Conrad III, is supposed to have had her dower seat here.