Based on a muster roll from 9 April, Bonaparte's field army consisted of four divisions under Generals of Division Amédée Emmanuel Francois Laharpe, Jean-Baptiste Meynier, Pierre Augereau, and Jean-Mathieu-Philibert Sérurier. Laharpe and Meynier's divisions formed the advance guard under André Masséna. Laharpe's 8,614 soldiers were divided between the 17th and 22nd Light Infantry Demi-Brigades and the 32nd and 75th Line Infantry Demi-Brigades.