English: A. Grant, "Service and tenure in late medieval Scotland 1324-1475" in A. Curry and E. Matthew, eds, Concepts and Patterns of Service in the Later Middle Ages (Boydell and Brewer, 2000), ISBN 0851158145, pp. 145-65; K. Stevenson, Chivalry and Knighthood in Scotland, 1424-1513 (Boydell Press, 2006), ISBN 1843831929, pp. 13-15; J. Goodacre, State and Society in Early Modern Scotland (Oxford: Oxford University Press, 1999), ISBN 019820762X, pp. 57-60; A. Grant, "Late medieval foundations", in A. Grant and K. J. Stringer, eds, Uniting the Kingdom?: the Making of British History (London: Routledge, 1995), ISBN 0415130417, p. 99; K. Stevenson, "Thai war callit knynchtis and bere the name and the honour of that hye ordre: Scottish knighthood in the fifteenth century", in L. Clark, ed., Identity and Insurgency in the Late Middle Ages (Boydell Press, 2006), ISBN 1843832704, p. 38; J. Wormald, Court, Kirk, and Community: Scotland, 1470-1625 (Edinburgh: Edinburgh University Press, 1991), ISBN 0748602763, pp. 48-9.