Otto II, Duke of Bavaria

Otto II Wittelsbach (1206–1253) was Duke of Bavaria from 1231 and Count Palatine of the Rhine from 1228. In 1222 he married Agnes of the Palatinate, bringing the Rhenish Palatinate to the Wittelsbach.

He acquired Bogen in 1240, whose white-and-blue arms became Bavaria's colours. Reconciled with Emperor Frederick II in 1241, he married his daughter Elisabeth to the future Conrad IV and was excommunicated. He died at Landshut in 1253, leaving sons Louis II and Henry XIII.