Duke of Aquitaine House of Valois claimed supremacy over Aquitaine. In 1360, both sides signed the Treaty of Bretigny, in which Edward renounced the French crown but remained sovereign Lord of Aquitaine (rather than merely duke). However, when the treaty was broken in 1369, both these English claims and the war resumed. In 1362, King Edward III, as Lord of Aquitaine, made his eldest son Edward, Prince of Wales, Prince of Aquitaine. In 1390, King Richard II, son of Edward the Black Prince appointed his uncle John of Gaunt Duke of Aquitaine. This grant expired upon the Duke's death, and the dukedom reverted
Edward the Black Prince in demolishing a large piece of wall which filled the ditches with its ruins. The town was then stormed, with the inevitable destruction and loss of life. The Victorian historian, William Hunt and author of the Black Prince's biography in the "Dictionary of National Biography" (1889) relying on Froissart as a source wrote that when the bishop (who was the most responsible for the surrender) was brought before the Prince, the Prince told him that his head should be cut off (Lancaster persuaded him not to carry out the deed), but that the city was never the less pillaged and