The next year, on 15 March 1813, Lhéritier was promoted to the rank of general of division and on 1 July was given the command of the 4th Heavy Cavalry Division of III Cavalry Corps. A few weeks later, on 8 August, he was given another command, that of several cavalry brigades from Édouard Jean Baptiste Milhaud's V bis Cavalry Corps, before having to take over the provisional command of the entire corps, during Milhaud's absence. During the summer campaign in Saxony, Lhéritier was noted above all for his actions at the Battle of Gieshübel on 22 August. Towards the end of the year, on 5 October, he was given the command of the 5th Heavy Cavalry division, which was entirely composed of dragoons. The 1814 campaign took place on French soil and Napoleon reorganised his army for the defense of the country's frontiers. As a result, on 5 January, General Lhéritier was given the command of the 6th Heavy Cavalry division, then, at the end of January, the 4th Dragoon Division. He led his men into combat with distinction at virtually all the major battles of the campaign, including Brienne, La Rothière and Saint-Dizier.