Norse activity in the British Isles the back and left shaggy on the front, whilst in contrast to this the latter typically wore their hair long. Under the reign of Wessex King Edgar the Peaceful, England came to be further politically unified, with Edgar coming to be recognized as the king of all England by both Anglo-Saxon and Norse populations living in the country. However, under the regimes of his son Edward the Martyr, who was murdered in 978, and then Æthelred the Unready, the political strength of the English monarchy waned, and in 980 Viking raiders from Scandinavia once more started making attacks against England.
Issue of Edward III of England by his third cousin Edward, 4th Duke of York of the York faction (great-grandson of Edmund of Langley, 1st Duke of York, 5th son of King Edward III), who reigned as King Edward IV. The Lancaster kings also had Plantagenet ancestry on the female side from Blanche of Lancaster, wife of John Gaunt, daughter of Henry of Grosmont, 1st Duke of Lancaster (c.1310-1361), descended from Edmund Crouchback, 1st Earl of Lancaster, the second son of King Henry III (1216-1272), the great-grandfather of King Edward III. A legend was developed, although without foundation, claiming that Edmund Crouchback was older than his