 French troops under General of Division Eustache Charles d'Aoust and General of Brigade Jacques Gilles Henri Goguet attacked the positions of Spanish Lieutenant General Jerónimo Girón-Moctezuma, Marquis de las Amarilas at Peyrestortes and Lieutenant General Juan de Courten at Le Vernet.The resulting Battle of Peyrestortes on 17 September was an important French victory.The badly shaken Spanish army regrouped near Trouillas.