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 Glyndŵr Owain Glyndŵr Owain Glyndŵr (; c. 1359 – c. 1415), or Owain Glyn Dŵr, was a Welsh ruler and the last native Welshman to hold the title Prince of Wales ("Tywysog Cymru"). He instigated a fierce and long-running, yet ultimately unsuccessful war of independence with the aim of ending English rule in Wales. The traditional spelling in English is Owen Glendower (. Glyndŵr was a descendant of the Princes of Powys through his father Gruffudd Fychan II, hereditary "Tywysog" of Powys Fadog and Lord of Glyndyfrdwy, and of those of Deheubarth through his mother Elen ferch Tomas ap Llywelyn ab