Andrew's career reached its height when, after the death of Bishop William Tulloch in 1482, he was elected to become the new Bishop of Moray.[8] He received papal provision on 12 August 1482, but was not consecrated until sometime between 22 December 1485 and 24 October 1487.[9] Andrew obtained a papal bull incorporating the provostry of Lincluden into the Moravian episcopal mensa for his lifetime, although this was cancelled in 1488.[10] He was the Keeper of the Privy Seal of Scotland, a position he resigned in early 1483.[11]
For a period he had hopes of becoming Archbishop of St Andrews in the place of William Scheves, but this never transpired.[8] In 1482 he and his two brothers promised 6000 ducats of gold to the city of Edinburgh, "in or the cais of prmocion of the saif reverend fadir [Andrew] to the Archbishoprik of Sanctandrois or quhatsomeuer vther benefice, dignitie, or privilegis".[12] Probably in pursuit of his ambition for St Andrews, he became the most prominent supporter of Alexander Stewart, Duke of Albany, who was attempting to seize the throne of Scotland in this period; this alliance had ended by 1485, when Albany had been defeated, and then killed in a joust in France.[13]
Despite incurring the enmity of King James III of Scotland and the censure of Pope Sixtus IV, Bishop Andrew survived, and was probably reconciled by 1487 when he received consecration. His episcopate is not particularly well documented, but he presided over a general convocation of the canons of Moray late in the year 1487. Andrew is known to have issued a number of episcopal statutes. Among other activities, he was in receipt of a safe-conduct from the English government in May 1497 and was at the Edinburgh parliament of 23 June 1496. King Henry VII of England requested on 5 July 1497 that Bishop Andrew be sent as an emissary to England concerning Perkin Warbeck.[14]
On 13 August 1501 Pope Alexander VI, at the instance of King Louis XII of France, made a reservation of the bishopric of Moray, showing that the Pope believed the see would soon become vacant, and perhaps indicating that Bishop Andrew had contracted some kind of mortal illness.[15] Bishop Andrew did die, on 29 September 1501.[8] He was buried in Elgin Cathedral.[16]
^His older brother James Stewart, Earl of Buchan, was born in 1441 x 1442, and Joan died in 1445; Boardman, "Stewart, James, earl of Buchan (1441/2?–1499/1500)"; Brown, "Joan [Joan Beaufort] (died 1445)".
^Boardman, "Stewart, James, earl of Buchan (1441/2?–1499/1500)"; Brown, "Joan [Joan Beaufort] (d. 1445)"; Dowden, Bishops, p. 163; Keith, Historical Catalogue, p. 245.
Boardman, S. I., "Stewart, James, earl of Buchan (1441/2?–1499/1500)", Oxford Dictionary of National Biography, Oxford University Press, 2004 retrieved 5 May 2007
Brown, M. H., "Joan [Joan Beaufort] (d. 1445)", Oxford Dictionary of National Biography, Oxford University Press, 2004 retrieved 5 May 2007
Dowden, John, The Bishops of Scotland, ed. J. Maitland Thomson, (Glasgow, 1912)
Keith, Robert, An Historical Catalogue of the Scottish Bishops: Down to the Year 1688, (London, 1924)
Tanner, Roland J., "Stewart, Alexander, duke of Albany (1454?–1485)", Oxford Dictionary of National Biography, Oxford University Press, 2004 retrieved 5 May 2007
Watt, D.E.R., Fasti Ecclesiae Scotinanae Medii Aevi ad annum 1638, 2nd Draft, (St Andrews, 1969)
