Edward the Black Prince of Cornwall in 1337. He was guardian of the kingdom in his father's absence in 1338, 1340, and 1342. He was created Prince of Wales in 1343 and knighted by his father at La Hogne in 1346. In 1346 Prince Edward commanded the vanguard at the Battle of Crécy, his father intentionally leaving him to win the battle. He took part in Edward III's 1349 Calais expedition. In 1355 he was appointed the king's lieutenant in Gascony, and ordered to lead an army into Aquitaine on a chevauchée, during which he pillaged Avignonet and Castelnaudary, sacked Carcassonne, and plundered Narbonne.
Royal coat of arms of the United Kingdom William I, King of Scots. Members of the British royal family are granted their own personal arms which are based on the Royal Arms. Only children and grandchildren in the male line of the monarch are entitled to arms in this fashion: the arms of children of the monarch are differenced with a three-point label; grandchildren of the monarch are differenced with a five-point label. An exception is made for the eldest son of the Prince of Wales, who bears a three-point label. Since 1911, the arms of the Prince of Wales also displays an inescutcheon of the ancient arms