狮子亨利
Count Adolf III at first supported Henry the Lion. He accompanied him on his expedition against Philipp von Heinsberg, Archbishop of Cologne, fought at the Battle of Halerfeld on 1 August 1180 (to the north-west of Osnabrück) at the side of Count Bernhard I of Ratzeburg, when he received from Henry the Lion the decisive rights in the region of the Middle Weser which formed the basis of the County of Schauenburg.