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|Duke of Bohemia|
|Reign||January - 6 September 1092|
|Died||6 September 1092 (aged c. 57)|
|Spouse||Wirpirk of Tengling|
|Mother||Judith of Schweinfurt|
He was the brother and successor of Vratislaus II (died 14 January 1092) as the third son of Bretislaus I and Judith of Schweinfurt. He did not succeed as king, because his brother had only been elevated to the royal dignity for life by the Emperor Henry IV without the establishment of a hereditary monarchy.
By his marriage to Wirpirk of Tengling, he had two children:
He was succeeded as duke by his nephew Bretislaus.