Otto V of Brandenburg-Salzwedel

Otto V the Tall (c. 1246–1298) was a son of Otto III the Pious, and from 1267 margrave of the Brandenburg-Salzwedel line, ruling jointly with his cousin Otto IV. He spent years at the Prague court of his uncle Ottokar II, and after the king fell at the Marchfeld in 1278 he became regent for the seven-year-old Wenceslaus II.

He outmaneuvered the Bohemian nobles and made Wenceslaus renounce Upper Lusatia. He married Judith of Henneberg, and his son Herman succeeded him in 1298.