Otto IV, Margrave of Brandenburg-Stendal, nicknamed Otto with the arrow was the Margrave of Brandenburg from the House of Ascania from 1266 until his death. Wikipedia
Born: 1238
Died: 1308 (age 70 years)
Parents: John I, Margrave of Brandenburg and Sophia of Denmark
Great-grandparents: Otto I, Margrave of Brandenburg, Valdemar I of Denmark, Sancho I of Portugal, and more
Partner: Jutta von Henneberg-Schleusingen (1308–) and Heilwig von Schauenberg (1262–)