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
Rhun ab Owain Gwynedd Rhun ab Owain Gwynedd Rhun ab Owain Gwynedd was the eldest child of Owain Gwynedd (the king of Gwynedd between 1137-1170). His mother was an Irish woman Pyfog (sometimes called Ffynnod Wyddeles) who was one of his father's many mistresses. Despite being illegitimate he was his father's favourite child and chosen successor. However, his premature death in 1146 is said to have cast his father into a deep depression which was only cured when he heard his forces had captured Mold Castle from the English. The Brut y Tywysogion describes Rhun ab Owain Gwynedd as: "fair of form and aspect,