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
Prince of Wales medieval England extending principally over the counties of Cheshire and Flintshire. A Prince of Wales also holds a number of additional titles. As heir apparent to the English/British throne he is—if the eldest living son of the monarch—Duke of Cornwall. As heir apparent to the Scottish throne he is Duke of Rothesay, Earl of Carrick, Baron of Renfrew, Lord of the Isles, and Prince and Great Steward of Scotland. Individual princes have also held additional titles, which were theirs prior to becoming Prince of Wales. Before ascending the throne Henry VIII, Charles I and George V were each Duke of