Battle on the Raxa: King Otto I defeats the Obotrite federation led by Nako and his brother Stoigniew near Mecklenburg.
The Battle on the Raxa river (German: Schlacht an der Raxa) was fought on 16 October 955 over control of the Billung march (in present-day Mecklenburg-Vorpommern, northeast Germany) between the forces of Otto I of Germany allied with the Rani tribe on one side, and the Obotrite federation under Nako and his brother Stoigniew (Stoinef, Stoinneg, Stoinegin, Ztoignav) with their allied and tributary Slav neighbours on the other. The Raxa river is identified with either the Recknitz or the Elde river. The German victory over the Slavs followed up on the August victory at the Lechfeld over the Magyars and marked the high point of Otto's reign.