Excerpts from Books and Wikipedia
"He married Isabella, the daughter of the powerful King Philip IV of France, in 1308 . . . Edward had a close and controversial relationship with Piers Gaveston, who had joined his household in 1300. . . . Led by Edward's cousin, the Earl of Lancaster, a group of the barons seized and executed Gaveston in 1312 . . . English forces were pushed back in Scotland, where Edward was decisively defeated by Robert the Bruce at the Battle of Bannockburn in 1314. Widespread famine followed, and criticism of the king's reign mounted." Hugh Despenser and family became close friends to Edward, but Lancaster forced the king to exile them. Edward then executed Lancaster. "Edward and the Despensers strengthened their grip on power . . . Unable to make progress in Scotland, Edward finally signed a truce with Robert. Opposition to the regime grew, and when Isabella was sent to France . . . She turned against Edward and refused to return. Instead, she allied herself with the exiled Roger Mortimer, and invaded England with a small army in 1326. Edward's regime collapsed and he fled to Wales . . . He died in Berkeley Castle on 21 September, probably murdered on the orders of the new regime." [Wikipedia]