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
Peterston-super-Ely its name suggests, the village lies on the River Ely, on the other side of which is the Coryton estate. The local parish church (in heavily restored simple Perpendicular style) is dedicated to Saint Peter. There are small remains of a castle. The oldest structure in the conservation area is the remains of Peterston Castle situated beside Castle Bungalow. The castle was built by the Norman lords of the manor, Le Sor family probably in the mid 13th century. It replaced an earlier structure destroyed by the Welsh and in turn was sacked and destroyed by Owain Glyndwr in 1403.