Richard of York, 3rd Duke of York
Descent
Richard of York was born on 22 September 1411, the son of Richard, Earl of Cambridge (1385–1415), and his wife Anne Mortimer (1388–1411). Both his parents were descended from King Edward III of England (1312–1377): his father was son of Edmund, 1st Duke of York (founder of the House of York), fourth surviving son of Edward III, whereas his mother Anne Mortimer was a great-granddaughter of Lionel, Duke of Clarence, Edward's second son. After the death in 1425 of Anne's childless brother Edmund, Earl of March, this ancestry supplied her son Richard, of the House of York, with a claim to the English throne that was arguably superior to that of the reigning House of Lancaster, descended from John of Gaunt, the third son of Edward III.
Richard of York, 3rd Duke of York-3