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
Church of St Dubricius, Porlock in a storm of 1703. Further restoration was undertaken between 1888 and 1891. Within the church is the very fine late 15th century alabaster tomb of John Harington, 4th Baron Harington (1384–1418) who fought alongside Henry V in France in 1417, and his first wife Elizabeth Courtenay (died 1471), daughter of Edward de Courtenay, 3rd Earl of Devon (died 1419). Elizabeth survived her first husband and married secondly William Bonville, 1st Baron Bonville (died 1461). The style of armour worn by Baron Harington is of the period c.1470, as was worn in the time of his widow's death, and is