As later the Despenser War played out, Roger Mortimer, 1st Earl of March was captured in January 1322, and imprisoned in the Tower of London. As William Devereux was his retainer, this was probably a factor in keeping him out of the Battle of Boroughbridge on 16 March 1322. Edward II's victory led to the death of Batholomew de Badlesmere and William Touchet, and brought Lyonshall Castle back into the King's hands.