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
Edward the Black Prince Thomas Holland: Edward had several natural sons before his marriage. With Edith de Willesford (died after 1385): With unknown mothers: Edward is often referred to as the "Black Prince". The first known source to use the sobriquet "Black Prince" was the antiquary John Leland in the 1530s or early 1540s (about 165 years after the death of the Black Prince). Leland mentions the sobriquet in two manuscript notes in the 1530s or early 1540s, with the implication that it was by that date in relatively widespread use. In one place, Leland refers in Latin to ""Edwardi Principis cog: Nigri"" (i.e.,