Category
page 1States and territories established in 1180
Benin Empire
West African kingdom (1180–1897)
Principality of Waldeck
former principality in Germany
Duchy of Styria
former state of the Holy Roman Empire and one-time crown land of Austria-Hungary
Duchy of Oldenburg
historical duchy centred on Oldenburg in what is now north-western Germany
Duchy of Westphalia
principality of the Holy Roman Empire
Archbishopric of Magdeburg
former archdiocese of the Catholic Church
Roman Catholic Diocese of Halberstadt
suppressed Roman Catholic Diocese