Saint Tewdrig Ap Teithfallt, also known by various other names such as Tewdrig ap Llywarch, Tewdrig of Tintern, Tewdrig of Glamorgan, Theodoricus, Theodoric, Theoderick, Teudrig, Tewdric, and Tudric, was born a prince, the son of King Ceithfalt of Morganwg, in the 5th to 6th century. Following his father's death, Tewdrig succeeded him and became the king of Morganwg. However, his reign was...