The Abbot of Inchaffray, before 1221 Prior of Inchaffray, and then by the end of the 15th century, the Commendator of Inchaffray, was the head of the community of Augustiniancanons of Inchaffray Abbey and their lands. Inchaffray is in Strathearn, in southern Perthshire, Scotland. The house was founded by Gille Brigte (Gilbert), mormaer of Strathearn in 1200 as a priory and was elevated to an abbey in 1221. By the late 15th century the monastery was becoming secularized. and after the resignation of Abbot George Mureff (Murray) in 1495, Laurence, Lord Oliphant, took over as commendator and thereafter it was held by commendators. It was turned into a secular lordship for Commendator James Drummond, Lord Maddertie, but the final formalization of the lordship did not come until 1669, when the it was given to William Drummond.
Cowan, Ian B. & Easson, David E., Medieval Religious Houses: Scotland With an Appendix on the Houses in the Isle of Man, Second Edition, (London, 1976), p. 91
Lindsay, William Alexander, Dowden, John & Thomson, John Maitland (eds.), Charters of Inchaffray Abbey, 1190-1609, Publications of the Scottish History Society, Volume LVI, (Edinburgh, 1908), pp. 249-57
Watt, D.E.R. & Shead, N.F. (eds.), The Heads of Religious Houses in Scotland from the 12th to the 16th Centuries, The Scottish Records Society, New Series, Volume 24, (Edinburgh, 2001), p. 101-05