Philip VI of France - Reign

Reign

Philip's reign was punctuated with crises. It began with military success in Flanders at the Battle of Cassel (August 1328), where Philip's forces reseated Louis I of Flanders, who had been unseated by a popular revolution. The able Joan gave the first of many demonstrations of her competence as regent in his absence.

Philip initially enjoyed relatively amicable relations with Edward III, and they planned a crusade together in 1332, which was never executed. However, the status of the Duchy of Aquitaine remained a sore point, and tension increased. Philip provided refuge for David II of Scotland in 1334 and declared himself champion of his interests, which enraged Edward. By 1336, they were enemies, although not yet openly at war.

Philip successfully prevented an arrangement between the papacy in Avignon and Holy Roman Emperor Louis IV although, in July 1337, Louis concluded an alliance with Edward III.

The final breach with England came when Edward offered refuge to Robert III of Artois, formerly one of Philip's trusted advisers. However, after he committed forgery to try to obtain an inheritance, he barely escaped France with his life, and was hounded by Philip throughout Europe. Edward made him Earl of Richmond and honoured him; in retaliation, Philip declared on 24 May 1337 that Edward had forfeited Aquitaine for rebellion and disobedience. Thus began the Hundred Years' War.