Tutgual of Galwyddel
Tutgual ap Cinuit was a fifth century Brythonic King of Galwyddel. The Kingdom of Galwyddel corresponded to modern-day Galloway, and included the Isle of Man. He was likely the son of Cinuit of Alt Clut upon whose death the Kingdom of Alt Clut was divided between his two sons: Dyfnwal Hen ; and Tutgual. He is believed to have been succeed by his son Dingat ap Tudwal.
Tudgual was probably born circa 467 AD. He is likely the King Tudwallus mentioned in the Life of St Ninian as having suffered blindness after disparaging St Ninian, but was cured of his ailment when he recognised Ninian's power.