Battle of Saucourt-en-Vimeu: Louis III of France defeats the Vikings, an event celebrated in the poem Ludwigslied.
The Battle of Saucourt was part of the Viking invasions of West Francia and occurred between forces of Vikings and the troops of Kings of West Francia, Louis III of France and his brother Carloman II, on 3 August 881 at Saucourt-en-Vimeu.