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Information about reign: Svend 3. Grathe (King Sweyn III)

To23 October 1157
Personal InformationKing Sweyn III of Denmark (1125 - 1157)

Sweyn III Grathe (Danish: Svend 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 a tripartition of Denmark. Sweyn attempted to kill his rivals at the peace banquet, and was subsequently defeated by Valdemar I at the Battle of Grathe Heath and killed.