On 24 April 1802 he was named to lead the 24th Chasseur à Cheval Regiment as Chef de Brigade (colonel). While still a colonel, he led a brigade consisting of the 15th and 24th Chasseurs à Cheval at the Battle of Caldiero on 29–31 October 1805. Transferred to Poland, he fought at Guttstadt and Friedland in 1807 and was promoted to general of brigade on 25 June 1807.