John III, Margrave of Brandenburg-Salzwedel [SEP] mother
John III, Margrave of Brandenburg-Salzwedel
John III, Margrave of Brandenburg-Salzwedel, nicknamed "John from Prague" (1244 in Prague – 1268) was the eldest son of Margrave Otto III and his wife, Beatrice of Bohemia.
After his father died in 1267, he ruled the Margraviate of Brandenburg jointly with his brother Otto V and his cousins Otto IV and Henry I.
John died during a tournament in 1268. He was unmarried and childless.
John V, Margrave of Brandenburg-Salzwedel
Margrave John V of Brandenburg-Salzwedel, nicknamed "the Illustrious" (in Latin "Illustris"), (1302 – 26 March 1317) was Margrave and co-ruler of Brandenburg from 1308 until his death.
His parents were Margrave Hermann, "the Tall" of Brandenburg and Anne of Austria, a daughter of Emperor Albert I, Duke of Austria and King of Bohemia. John married Catherine (d. 1327), a daughter of Duke Henry III of Glogau