Background
He was the youngest son of Bretislaus I, Duke of Bohemia and Judith of Schweinfurt. After his father"s death, his older brother was crowned as Spytihněv II, Duke of Bohemia.
He was the youngest son of Bretislaus I, Duke of Bohemia and Judith of Schweinfurt. After his father"s death, his older brother was crowned as Spytihněv II, Duke of Bohemia.
Otto married Euphemia, daughter of King Béla I of Hungary, before 1073.