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
Einion ab Owain a Viking raid against St. David's in 980 or 982. Einion predeceased his father, being slain at Pencoed Colwynn by the men of Glywysing and Gwent in AD 982 or 984. His offices were taken by his brother Maredudd, rather than by either of his sons. His line recovered the throne under his grandson Hywel around 1035. He is sometimes credited with being the namesake of Port Eynon or Einon on the Gower peninsula. Einion ab Owain Einion ab Owain (died ) was a medieval Welsh prince of the House of Dinefwr. He was the eldest son and probable edling