caused great anger and resentment in England against John of Gaunt, who remained a powerful political player, but his unpopularity meant his efforts to agree peace with France were unsuccessful. By 1374, the Treaty of Bretigny had been nullified in fact as well as name; apart from Calais, England held no more territory than before their victory at Crécy in 1346. Treaty of Bruges Instigated by Pope Gregory XI, the 1375 Treaty of Bruges agreed a 12 month truce between the two sides while they negotiated an end to the fighting. France was represented by Philip II, Duke of Burgundy, England by John of Gaunt but talks eventually broke down over the issue of Aquitaine; the English wanted full sovereignty, while the French insisted it be retained by the House of Valois. Despite attempts by the Pope to broker a compromise, agreement could not be reached and the war resumed in 1377. The Black Prince died in 1376; in April 1377, Edward III sent his Lord Chancellor, Adam Houghton, to negotiate with Charles, who returned home when Edward himself died June. He was succeeded by his ten year old grandson, Richard II, succeeded to the throne of England. It was not until Richard had been deposed by his cousin Henry Bolingbroke that the English, under the House of Lancaster, could forcefully revive their claim to the French throne. The war nonetheless continued until the first of a series of truces was signed in 1389. Charles V died in September 1380 and was succeeded by his underage son, Charles VI, who was placed under the joint regency of his three uncles. With his successes, Charles may have believed that the end of the war was at hand. On his deathbed Charles V repealed the royal taxation necessary to fund the war effort. As the regents attempted to reimpose the taxation a popular revolt known as the Harelle broke out in Rouen. As tax collectors arrived at other French cities the revolt spread and violence broke out in Paris and most of France's other northern cities. The regency was forced to repeal the taxes to calm the situation. The Great Schism In 1378 Charles V's support for the election of the Avignon Pope Clement VII started the Great Schism. This event split the Church for almost four decades and thwarted papal efforts to prevent or end the Hundred Years' War. The disputed