They were defeated in the 1164 Battle of Verchen, but allowed to keep their duchy as a fief from Henry.
After the lost 1164 Battle of Verchen, where Casimir and Bogislaw aided an Obodrite rebellion against the duke of Saxony, Henry the Lion, Casimir and Bogislaw joined Saxony receiving their respective part duchies as a fief from Henry the Lion.
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In 1159, Adolf accompanied the Emperor Frederick I into Italy and in 1164 he aided Henry the Lion against the Obotrites, dying in the Battle of Verchen.