Edward had a close and controversial relationship with Piers Gaveston, who had joined his household in 1300. The precise nature of their relationship is uncertain; they may have been friends, lovers or sworn brothers. Edward's relationship with Gaveston inspired Christopher Marlowe's 1592 play "Edward II", along with other plays, films, novels and media. Gaveston's power as Edward's favourite provoked discontent both among the barons and the French royal family, and Edward was forced to exile him. On Gaveston's return, the barons pressured the king into agreeing to wide-ranging reforms, called the Ordinances of 1311. The newly empowered barons banished Gaveston, to which Edward responded by revoking the reforms and recalling his favourite. Led by Edward's cousin Thomas, 2nd Earl of Lancaster, a group of the barons seized and executed Gaveston in 1312, beginning several years of armed confrontation. 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.