John I, Prince of Anhalt-Bernburg
German prince / From Wikipedia, the free encyclopedia
John I, Prince of Anhalt-Bernburg (*1260 died 5 June 1291) was a German prince of the House of Ascania and ruler of the principality of Anhalt-Bernburg.
He was the eldest son of Bernhard I, Prince of Anhalt-Bernburg, by his wife Princess Sophie, daughter of King Abel of Denmark.