Louis III of France

Louis III
King of West Francia
First two pages of an early copy of the Ludwigslied, a song written during the king's lifetime, celebrating his victory over the Vikings at Saucourt
Reign	879–882
Coronation	September 879
Predecessor	Louis the Stammerer
Successor	Carloman II
Born	863/865
Died	5 August 882 St Denis, Île-de-France, Neustria
Burial	Basilica of St Denis
Dynasty	Carolingian
Father	Louis the Stammerer
Mother	Ansgarde of Burgundy

Louis III (863/65 – 5 August 882) was the king of West Francia from 879 until his death in 882. The eldest son of king Louis the Stammerer and his first wife Ansgarde of Burgundy, he succeeded his father and ruled jointly with his younger brother Carloman II, who became sole ruler after Louis's death. Louis's short reign was marked by military success.

Louis was born while his father was King of Aquitaine and his grandfather Charles the Bald was ruling West Francia. Some doubts were raised about his legitimacy, since his parents had married secretly and Ansgarde was later repudiated at Charles' insistence. When Charles died in 877 and then Louis the Stammerer died two years later, some Frankish nobles advocated electing Louis as the sole king, but another party favoured each brother ruling a separate part of the kingdom. In September 879 Louis was crowned at Ferrières Abbey. In March 880 at Amiens the brothers divided their father's kingdom, Louis receiving the northern part, called Neustria or sometimes simply Francia.

Duke Boso, one of Charles the Bald's most trusted lieutenants renounced his allegiance to both brothers and was elected King of Provence. In the summer of 880 Carloman II and Louis III marched against him and captured Mâcon and the northern part of Boso's kingdom. They united their forces with those of their cousin Charles the Fat, then ruling East Francia and Kingdom of Italy, and unsuccessfully besieged Vienne from August to November. In 881 Louis III achieved a momentous victory against Viking riders, whose invasions had been ongoing since his grandfather's reign, at the Battle of Saucourt-en-Vimeu. Within a year of the battle an anonymous poet celebrated it and the king, for both his prowess and piety in a short poem Ludwigslied composed in the Old High German.