"The Diocese of Halberstadt was a Roman Catholic diocese (German: Bistum Halberstadt) from 804 until 1648. From 1180, the bishops or administrators of Halberstadt ruled a ...
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state within the Holy Roman Empire, the prince-bishopric of Halberstadt (German Hochstift Halberstadt). The diocesan seat and secular capital was Halberstadt in present-day Saxony-Anhalt." - (en.wikipedia.org 10.08.2021)
