The Danish civil wars came to an end
The battle of Grathe Heath was fought between the Danish armies of Valdemar the Great and his rival for the Danish throne, Svein Grath.

Svein's army was defeated by Valdemar forces, but Svein even managed to escape. Shortly after the battle, however, he was killed by a farmer while he hid in Grathemose. After this, Valdemar the Great became sole king of Denmark.

The battle also marked the end of the civil wars between Svein Grath, Knut 5. Magnusson and Valdemar the Great, all of whom fought for the Danish throne.

Valdemar stabilization of Denmark began immediately after the battle. He acted as a conciliatory victor, and forgave most of their previous opponents. Only Knut Magnusson murderers were executed, while a few of Svein's advisors were ostracized.

Archeologists have found a lot of weapons om the battle site, especially axes.