In 1158 a feud with Henry the Lion, Duke of Saxony, was interrupted by a pilgrimage to the Holy Land. On his return in 1160, he, with the consent of his sons, Siegfried not being mentioned, donated land to the Knights of Saint John in memory of his wife, Sofia, at Werben on the Elbe.
In 1158, a conflict with Henry the Lion, Duke of Saxony, was resolved by a pilgrimage to the Holy Land. Upon his return in 1160, he, with the agreement of his sons, donated land to the Knights of Saint John in memory of his wife, Sofia, at Werben on the Elbe.