Coat of arms of the Prince of Wales of the duchy on his coat of arms. This title has been granted to every heir apparent since 17 March 1337, in accordance with a charter issued by King Edward III for Prince Edward the Black Prince, his eldest son and heir. The family of the Prince of Wales is entitled to use certain heraldic features. The consort of the Prince of Wales (titled the Princess of Wales) is granted a unique coat of arms upon marriage, based on the impaling of the prince's arms (on the dexter side) and her father's arms (on the sinister side). The consort is
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