Gates, 239 Loison led the corps at the Battle of Fuentes de Onoro from 3 to 5 May, during which all three divisions lost 107 killed, 804 wounded, and 33 missing.
Gates, 239 Loison led the corps at the Battle of Fuentes de Onoro and Claude François Ferey took command of Loison's division. On 5 May, all three divisions lost 107 killed, 804 wounded, and 33 missing.