Otto II of Bavaria was a German nobleman born in 1177, known for his role as the Duke of Bavaria from 1183 until his death in 1253. He was a member of the Wittelsbach dynasty and played a significant part in the political landscape of medieval Germany. Otto II was involved in various conflicts and alliances, which shaped the region's power dynamics during his reign. Throughout his rule, Otto II worked to strengthen the authority of the Bavarian duchy and expand its territories. He was also known for his patronage of the arts and support for the Catholic Church, contributing to the cultural development of Bavaria during the 13th century.