Louis the Stammerer (French: Louis le Bègue; 1 November 846 – 10 April 879) was the king of Aquitaine and later the king of West Francia. He was the eldest son of Emperor Charles the Bald and Ermentrude of Orléans. Louis the Stammerer was physically weak and outlived his father by a year and a half.
In 866, Louis succeeded his younger brother Charles the Child as the ruler of Aquitaine. In 877, he succeeded his father as ruler of the entire West Francia, including Lower Burgundy with Provence, but without rule over Italy. Thus, he did not become the emperor. He was crowned king of West Francia on 8 October 877 by Hincmar, archbishop of Reims, at Compiegne and was crowned a second time in August 878 by Pope John VIII at Troyes while the pope was attending a council there. The pope may have even offered him the imperial crown, but it was declined. Louis had relatively little impact on politics. He was described as "a simple and sweet man, a lover of peace, justice, and religion". In 878, he gave the counties of Barcelona, Girona, and Besalú to Wilfred the Hairy. His final act was to march against the invading Vikings, but he fell ill and died on 10 April 879 at Compiègne, not long after beginning this final campaign.
