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Contention over the division of the Holy Roman Empire between the three surviving sons of Louis the Pious culminated in the decisive 'Battle of Fontenay-en-Puisaye' fought at Fontenay on the 25 June 841. It was a defeat for the allied forces of Lothair I of Italy and Pepin II of Aquitaine and a victory for Charles the Bald and Louis the German.

Contents

Background

The battle

See also

Sources

Background

Louis the Pious throughout his long reign had entreated to divide his empire meritoriously amongst his sons—''all'' his sons. With the late-born Charles, his attempts led to civil wars which culminated in his vindicating defeat of his last rebellious son, Louis, in 839. At Worms, on May 30 that year, he divided his empire for the last time, giving Lothair the kingdom he already held (Italy) and the imperial title, with all the other lands of the east and Charles receiving all the lands of the west. Louis was left with Bavaria while Pepin, his grandson, was left out of the inheritance.
On 24 July 840 in Strasbourg, Lothair precipitated a new civil war by declaring his ''imperium'' over all the lands of the empire and, joining with his nephew Pepin attacked, attacked the Loire Valley. The barons of Burgundy divided over allegiance to Charles and Lothair. Ermenaud III of Auxerre, Arnoul of Sens, and Audri of Autun pledged themselves for Lothair, while Guerin of Provence and Aubert of Avallon remained with Charles. Girard II, Count of Paris, the emperor's brother-in-law, joined Lothair also. In March 841, the Burgundians faithful to Charles accompanied Guerin to join him and in May, Louis of Bavaria and his troops met Charles army at Châlons-sur-Marne. In June, Pepin finally joined with Lothair in Auxerre.

The battle

The two armies, of about 150,000 men each, met on June 25. According to tradition, Charles established his camp at Thury, on the hill of Roichat. Lothair and Pepin intiated battle and took the upper hand until the arrival of Guerin and his army of Provençals. While Pepin and his contingent continued to push back Charles men, Lothair was slowly pushed back himself by Louis the German and the Provençals. Finally, when victory seemed sure for Charles, Bernard of Septimania entered the conflict on his side and the victory became a rout. A total of 40,000 men died, including Gerard of Auvergne and Ricwin of Nantes, who fell at Charles' side.
In spite of his personal gallantry, Lothair was defeated and fled to his capital of Aix-la-Chapelle. With fresh troops he entered upon a war of plunder, but the forces of his brothers were too strong for him, and taking with him such treasure as he could collect, he abandoned to them his capital.

See also

★ Oath of Strasbourg (842)

★ Treaty of Verdun (843)

Sources

★ ''Initial text adapted from the entry for ''Lothair I'' in the 1911 Encyclopedia''.