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
Painscastle Castle castle was rebuilt in stone by King Henry III of England and Hubert de Burgh as part of a campaign against Llywelyn the Great. In 1233 the castle was claimed by Ralph Tosny, whose family held it until the castle was taken by Llywelyn ap Gruffudd from Roger Tosny in 1265. Another Ralph Tosny was able to recover and rebuild it in 1276. It later passed to the Beauchamp dynasty's hands, Earls of Warwick. Painscastle was refortified yet again at the time of the Welsh rebellion led by Owain Glyndŵr in 1401 while under the Beauchamps for the King, Henry