Teudebur of Alt Clut (orTeudebur map Beli) was the ruler ofAlt Clut (the area around modernDumbarton Rock), in the early-to-mid eighth century (probably 722–52). According to theHarleian genealogies, he was the son ofBeli II, his probable predecessor as king. Such information is confirmed by both the Irish and Welsh annals.[1] We know from theHarleian genealogy that he was the father ofDumnagual III,[2] one of his successors. His reign coincided with that of the illustrious Pictish kingÓengus mac Fergusa (Onuist map Uurguist). TheAnnales Cambriae reports that in 750, the Britons defeated a Pictish army atMocetauc (Mygedawc), in which, according to theAnnals of Tigernach, Óengus' brother Talorgen was killed.[3] Mygedawc is often identified with modern Mugdock, on the boundary betweenDunbartonshire andStirlingshire,[4] but this identity is by no means certain. TheAnnals of Tigernach, which styles himTaudar mac Bile,rí Alo Cluaide, put his death at 752,[5] and for this reason, we can be certain Teudebur was the British king responsible for the British victory.
^Alan MacQuarrie, "The Kings of Strathclyde", in A. Grant & K.Stringer (eds.)Medieval Scotland: Crown, Lordship and Community, Essays Presented to G.W.S. Barrow, (Edinburgh, 1993), p. 10.
^Harleian genealogy of the Kings of Alt Clut,here,
Anderson, Alan Orr, Early Sources of Scottish History: AD 500–1286, 2 Vols, (Edinburgh, 1922), vol. i, p. 239-40
MacQuarrie, Alan, "The Kings of Strathclyde", in A. Grant & K.Stringer (eds.)Medieval Scotland: Crown, Lordship and Community, Essays Presented to G.W.S. Barrow, (Edinburgh, 1993), pp. 1–19
Williams, Anne, Smyth, Alfred P., and Kirby, D.P., (eds.),A Biographical Dictionary of Dark Age Britain, (London, 1991), s.v. "Teudebur (Teudubr) map Bili", pp. 221–2
