Cormac of Mortlach is the third Bishop of Mortlach, Scotland, according to the list of the Aberdeen Registrum.Cosmo Innes, Registrum episcopatus Aberdonensis : ecclesie Cathedralis Aberdonensis regesta que extant in unum collecta, (Spalding and Maitland Clubs, 1845), vol. ii. p. 125 He is known only by name. Skene tried to identify him with Bishop Cormac of Dunkeld,William F. Skene, Celtic Scotland: A History of Ancient Alban, 3 Vols, 2nd ed., (Edinburgh, 1887), vol. ii. p. 380 but this argument rests purely on the similarity of an extremely common name. Cormac's successor Nechtan was bishop by at least 1131, when he appears in a charter recorded in the Gaelic notitiae on the margins of the Book of Deer.See Kenneth H. Jackson (ed), The Gaelic Notes in the Book of Deer: The Osborn Bergin Memorial Lecture, 1970, (Cambridge, 1972), pp. 31, 34, 60; see also Nechtan of Aberdeen.
Notes
References Jackson, Kenneth H. (ed.), The Gaelic Notes in the Book of Deer: The Osborn Bergin Memorial Lecture 1970, (Cambridge, 1972), Innes, Cosmo, Registrum episcopatus Aberdonensis : ecclesie Cathedralis Aberdonensis regesta que extant in unum collecta, 2 Vols, (Spalding and Maitland Clubs, 1845), Vol. ii Skene, William Forbes, Celtic Scotland: A History of Ancient Alban, 2nd ed., (Edinburgh, 1887), vol. ii