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
Carreg Cennen Castle responsible for the remodelled castle we see today. In early July 1403 Owain Glyndŵr, together with 800 men, attacked Carreg Cennen, but, although inflicting severe damage to the walls, failed to take the castle. It was defended against Glyndwr's forces, who laid siege to it for several months, with Owain himself present, by a man who was to marry one of Glyndwr's daughters just a few years later, Sir John Scudamore of Herefordshire. The damage was repaired in 1409. However, in 1461, during the Wars of the Roses, Carreg Cennen became a Lancastrian stronghold. A Yorkist force subsequently captured the