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 of "The Dark is Rising Sequence". For a study of the various ways Glyndŵr has been portrayed in Welsh-language literature of the modern period, see E. Wyn James, "Glyndŵr a Gobaith y Genedl: Agweddau ar y Portread o Owain Glyndŵr yn Llenyddiaeth y Cyfnod Modern" (English: "Glyndŵr and the Hope of the Nation: Aspects of the Portrayal of Owain Glyndŵr in the Literature of the Modern Period") (Aberystwyth: Cymdeithas Llyfrau Ceredigion, 2007). 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