At the Battle of La Rothière on 1 February 1814, 80,000 Coalition troops led by Gebhard Leberecht von Blücher defeated 45,000 French soldiers led by Napoleon. The Coalition sustained 6,000–7,000 casualties while the French lost 5,600 men and 73 artillery pieces. After the battle, the French Army retreated to Nogent-sur-Seine, where Napoleon reorganized his cavalry into the I Cavalry, II Cavalry, V Cavalry and VI Cavalry Corps, an independent division led by General Jean-Marie Defrance and three divisions of Imperial Guard cavalry. General François Étienne de Kellermann was appointed commander of the VI Cavalry Corps, which was to include cavalry under General Anne-François-Charles Trelliard that transferred from the Spanish front. The necessary orders were issued on 9 February, but the organization of Kellermann's corps was not fully carried out until 20 February. In July 1813 during the Battle of the Pyrenees, Trelliard's 2,300-strong division consisted of the 4th, 14th, 16th, 17th, 21st, and 26th Dragoon Regiments. After the Battle of the Nive in December 1813, all of Trelliard's dragoons and some of General Pierre Benoît Soult's cavalry were transferred from the Spanish frontier to the campaign in northeast France.