1. Duan Albanach, in Chronicles of the Picts, Chronicles of the Scots, and other Early Memorials of Scottish History, ed. W. F. Skene (Edinburgh: Register House: Edinburgh, 1867), 57–64. See also Benjamin T. Hudson, The Prophecy of Berchán: Irish and Scottish Highkings of the Early Middle Ages (Westport, CT and London: Greenwood Press, 1996).
2. Early Scottish Charters Prior to AD 1153, ed. Archibald C. Lawrie (Glasgow: James MacLehose and Sons, 1905).
3. The pertinent volumes for this study are: Charters of David I: The Written Acts of David I King of Scots, 1124–53, and of His Son Henry Earl of Northumberland, 1139–52, ed. G. W. S. Barrow (Woodbridge: Boydell Press, 1999);
4. Acts of Malcolm IV, King of Scots 1153–1165, Together with Scottish Royal Acts Prior to 1153 Not included in Sir Archibald Lawrie’s “Early Scottish Charters”, ed. G. W. S. Barrow (Edinburgh: The University Press, 1960);
5. Acts of William I, 1165–1214, ed. G. W. S. Barrow and William W. Scott (Edinburgh: The University Press, 1971);