He makes his only historical appearance as Macbeth Rosmarkensis Episcopus (i.e. "Mac Bethad, Bishop of Rosemarkie") in a list of witnesses to a charter granted by King David I of Scotland to the Church of Dunfermline, confirming the previous rights of that church.Sir Archibald Lawrie, Early Scottish Charters Prior to A.D. 1153, (Glasgow, 1905), no. 74, p. 63.
The charter is dated by its modern editor to 1128,loc. cit.John Dowden, The Bishops of Scotland, ed. J. Maitland Thomson, (Glasgow, 1912), p. 209.
Notes
References
Dowden, John, The Bishops of Scotland, ed. J. Maitland Thomson, (Glasgow, 1912)
Lawrie, Sir Archibald, Early Scottish Charters Prior to A.D. 1153, (Glasgow, 1905)