(Theliau, Dillo) (Saint) Bishop (February 9) (6th century) A famous Saint of South Wales, disciple of Saint Dubritius, and friend of Saints Samson and David. Records exist of his pilgrimages to Rome and Brittany, where churches bear his name. He became the successor of both Saint Dubritius and Saint David in the Primacy of Wales and in the Bishopric of Llandaff, where his zeal and charity won him great repute. He died at his monastery of Llan-Deilo-Vawr, A.D. 560.
- Monks of Ramsgate. “Teilo”. , 1921. CatholicSaints.Info. 7 February 2017. Web. 27 February 2017. <>