Tutgual Tutclyd, King of Strathclyde
(Born c.AD 510)
(Welsh: Tudwal; Latin: Theodovellaunus; English: Theowald)

The eldest son of King Cedic of Strathclyde, Tutgual has the intriguing epithet of 'Defender of the People'. He was presumably a warrior king who protected his subjects from the onslaught of invasion, a common threat in Dark Age Britain. There appears to have been a shortage of land for Royal heirs during Tutgual's reign; so, to secure the largest possible inheritance for his own sons, he may have wrested Galwyddel (Galloway)  from King Cynfarch Oer of North Rheged.

Tutgual's military prowess is further indicated by his whetstone being listed as one of the 'Thirteen Treasures of Britain'. It is said it would sharpen the weapon of a brave man so that a wound from his blade would be certain to be fatal; whilst it would not only blunt the weapon of a coward, but render it incapable of harming anyone.

Tutgual does not seem to have been a Christian and he opposed St. Ninian when  he founded his cathedral at Whithorn around AD 530. He was, however, married and had sons, Riderch (his primary successor), Morcant, Culfulch and Ardderchddrud, and a daughter, Gwenfron. His wife is however, variously (and dubiously) recorded as Elufed, daughter of Peredur ap Morhen and great grandaughter of King Ednyfed of Dyfed, or Ethni Wyddeles, presumably an Irishwoman.