Sweyn III, Danish king (born c. 1125)

Sweyn III of Denmark

King of Denmark from 1146 to 1157

Sweyn III Grathe was the king of Denmark between 1146 and 1157, in shifting alliances with Canute V and his own cousin Valdemar I. In 1157, the three agreed to a tripartition of Denmark. Sweyn attempted to kill his rivals at the peace banquet, and was subsequently defeated by…