Otto III of Bergau

Otto III of Bergau (Otto der Ältere von Bergow; died 1414), also known as Otto the Elder of Bergau, was a Bohemian nobleman, high-ranking provincial official, and political opponent of Wenceslaus IV of Bohemia.

Biography
Otto was the son of Albert of Bergov, and he inherited the castles of Nový Žeberk and Bílina Castle. He held the office of Highest Burgrave of the Kingdom of Bohemia from 1388 to 1393. He was a part of the League of Lords against Wenceslaus IV of Bohemia, and was later appointed to the office of Highest Provincial Chamberlain of the Kingdom of Bohemia by Sigismund of Luxembourg.

During his lifetime, Otto and his son, Otto IV of Bergau, acquired further estates including Trosky Castle, Hrubý Rohozec, Zbiroh, and parts of Jirkov and Turnov.