 Complete the following phrase:  Back in Germany after the retreat from Moscow, Beaumont led the light cavalry in Neys III Corps from 22 March 1813. At the battle of Lützen he led a brigade of lancers in VI Corps under Marmont, then the German light cavalry of XII Corps under Oudinot in August 1813. Briefly attached to IV Corps, he fought at Wartenburg on 3 October. Once more under Marmonts command, he fought at Leipzig and 