 In 1319 , the King and Lancaster fell out during a failed campaign against Scotland . The next year Lancaster refused to attend a parliament summoned by the King , and later the same year , Edward obtained papal absolution from his oath to follow the Ordinances . Meanwhile , an inheritance dispute had broken out in the Welsh Marches between the Despensers and certain marcher lords , including Humphrey de Bohun , Earl of Hereford . Lancaster now took the initiative with the discontented . In 1321 he summoned two meetings of magnates , one at Lancaster 's residence of Pontefract in March , and the other at Sherburn in June . The meetings consisted of northern and marcher lords , as well as Lancaster 's own retainers , but little assistance was forthcoming from the northerners . The marcher rebellion , and the threat of civil war , forced the King to exile the younger Despenser , but the favourite was recalled within weeks . 
