He succeeded as Duke of
Lower Bavaria from 1310 until 1334 as co-regent of his brother
Henry XIV and his cousin
Henry XV. In 1322 he was in war with his co-regents, in 1331 Lower Bavaria was finally partitioned among them. Otto then governed
Burghausen,
Traunstein and several other Bavarian cities. Otto, who hated his brother made his cousin Emperor
Louis IV, Holy Roman Emperor his contracted heir.
Marriage
Otto IV married Richardis of
Jülich. She was a daughter of
Gerhard V of Jülich and Elisabeth of Brabant-Aarschot. They had one known child:
Albert of Wittelsbach. Born in 1332. Predeceased his father.
He succeeded as Duke of
Lower Bavaria from 1310 until 1334 as co-regent of his brother
Henry XIV and his cousin
Henry XV. In 1322 he was in war with his co-regents, in 1331 Lower Bavaria was finally partitioned among them. Otto then governed
Burghausen,
Traunstein and several other Bavarian cities. Otto, who hated his brother made his cousin Emperor
Louis IV, Holy Roman Emperor his contracted heir.
Marriage
Otto IV married Richardis of
Jülich. She was a daughter of
Gerhard V of Jülich and Elisabeth of Brabant-Aarschot. They had one known child:
Albert of Wittelsbach. Born in 1332. Predeceased his father.