Battle of Fotevik

Battle of Fotevik was fought between forces of King Niels of Denmark and his son Magnus Nilsson, against those of Erik Emune on 4 June 1134 at the bay of Fotevik in Skåne.

At his death, King Eric I of Denmark had two known sons who were candidates for succession to the throne, Canute Lavard and Erik Emune. Canute, as Eric's only legitimate son, had a particularly strong claim. When King Eric's younger brother Niels was selected instead, becoming King Niels, Canute was forced to flee. In January 1131 he was trapped in a forest near Ringsted in Zealand, and killed. Some sources consider it to have been a murder committed by Magnus Nilsson, while some attribute it to King Niels himself. The new king and his son soon found themselves in a civil war against Lavard's half-brother Eric Emune. The death of Canute Lavard had provoked a civil war that would last intermittently until 1157.

Wikipedia