Issue of Edward III of England – 3 February 1399), 1st Duke of Lancaster, fourth son. From the marriage of John of Gaunt and Blanche of Lancaster, daughter and heiress of the Duke of Lancaster, descended legitimate male heirs, the Lancasters (King Henry IV (1399-1413), who as Henry of Bolingbroke in 1399 deposed his first cousin King Richard II (1377-1399), and was followed by his son King Henry V(1413-1422) and the latter's son King Henry VI (1422-1471). This line ended in 1471 when King Henry VI's son Edward of Westminster, Prince of Wales was killed at the Battle of Tewkesbury and when he himself was deposed
William Cary (1437–1471) had children, ancestors of the present Viscount Portman, owner of the Portman Estate in London. Cary married twice: Cary was beheaded on 6 May 1471 after the defeat of the Lancastrians at the Battle of Tewkesbury. He is believed to be represented by a monumental brass of a knight, without surviving identifying inscription, set into a slate ledger stone on the floor of the chancel of All Saints Church, Clovelly, next to a smaller brass, in similar style, of his son and heir Robert Cary (died 1540). William Cary (1437–1471) Sir William Cary (1437–1471) of Cockington and Clovelly in Devon