Battle of Grathe Heath

Battle of Grathe Heath
Part of Danish Civil War

Monument at Grathe hede, by J.Th Hansen
Date23 October 1157
Location
Result Valdemar I victory
End of the Danish Civil War
Belligerents
Forces of Valdemar I Forces of Sweyn III
Commanders and leaders
Valdemar I Sweyn III 
Strength
~2,000 ~4,000–5,000
(entire force of Zealand and east Denmark mustered)
Casualties and losses
Minor ~4,000
entire force slain, captured or scattered

The Battle of Grathe Heath was fought in 1157 between the Danish armies of Valdemar I and his rival for the Danish throne, Sweyn III. Valdemar's forces won the battle, and Sweyn III was slain while attempting to flee.