Issue of Edward III of England the Yorks left Richard III as king, supported and then betrayed by his cousin Buckingham, the descendant of Thomas of Woodstock. Finally, the Yorks were dislodged by the remaining Lancastrian candidate, Henry VII of the House of Tudor, another descendant of John of Gaunt, who married the eldest daughter of Yorkist King Edward IV. Edward, the Black Prince (15 June 1330 – 8 June 1376), Duke of Cornwall, Prince of Wales. The eldest son of Edward III who predeceased his father and never became king. Edward's only surviving child was Richard II who ascended to the throne but produced no
Richard III of England to summon the Border Levies and issue Commissions of Array to repel the Border raids. Together with the Earl of Northumberland he launched counter-raids, and when the king and council formally declared war in November 1480, he was granted £10,000 for wages. The king failed to arrive to lead the English army and the result was intermittent skirmishing until early 1482. Richard witnessed the treaty with Alexander, Duke of Albany, brother of the Scottish king James III. Northumberland, Stanley, Dorset, Sir Edward Woodville, and Richard with approximately 20,000 men took the town of Berwick almost immediately. The castle held until