Owain Glyndŵr were leaving their studies to join Owain, and Welsh labourers and craftsmen were abandoning their employers in England and returning to Wales. Owain could also draw on Welsh troops seasoned by the English campaigns in France and Scotland. Hundreds of Welsh archers and experienced men-at-arms left English service to join the rebellion. In 1404, Owain held court at Harlech and appointed Gruffydd Young as his Chancellor. Soon afterwards, he called his first Parliament (or or "gathering") of all Wales at Machynlleth, where he was crowned Prince of Wales and announced his national programme. He declared his vision of an independent
Owain mab Urien the later accounts assume his mother is Morgan le Fay, if not one of the King's other half-sisters. He has a half brother called Owain (or Yvain) the Bastard after him, the product of a union between Urien and his senechal's wife. The Welsh give him a twin sister, Morvydd, and as Arthur's maternal nephew he is a cousin to Gawain and the Orkney clan. Owain mab Urien Owain mab Urien (Middle Welsh Owein) (died c. 595) was the son of Urien, king of Rheged c. 590, and fought with his father against the Angles of Bernicia. The historical figure