 He also led his demi-brigade at the Battle of Rivoli on 14 January 1797 and in the clash at La Favorita two days later.He was described by Louis Desaix as, "square figure ... not a thief, big, leans backward; very dark skin".After fighting in Switzerland under Guillaume Brune in 1798, where he Forced the crossing of Gümmenen, he joined Bonaparte's Egyptian expedition.