Gwilym ap Tudur Rhys and Owain Glyndŵr. As a result, the Tudur brothers began planning an attack on Conway Castle. On Good Friday, 1 April 1401, the brothers and 44 men (which included those who had also been excluded from the pardons) infiltrated the castle. They had pretended to be carpenters, and captured the castle while the guard were in church. Negotiations began for the return of the castle on 13 April, with the king represented by Henry "Hotspur" Percy and Gwilym representing the Welsh forces. After seeking a compromise, which would have resulted in pardons being given to the Welshmen, the king
Owain Lawgoch Owain Lawgoch Owain Lawgoch (, ), full name Owain ap Thomas ap Rhodri ( – July 1378), was a Welsh soldier who served in Spain, France, Alsace, and Switzerland. He led a Free Company fighting for the French against the English in the Hundred Years' War. As the last politically active descendant of Llywelyn the Great in the male line, he was a claimant to the title of Prince of Gwynedd and of Wales. Following the death of Llywelyn the Last in 1282 and the execution of his brother and successor Dafydd ap Gruffudd in 1283, Gwynedd paid fealty to