Probably from Menteith, he appears in the sources from the first half of the 1340s, possessing a university degree and holding the position of Archdeacon of Ross.
[1] After the resignation of Bishop Roger, on 3 November 1350, Alexander Stewart was provided to the now vacant diocese of Ross; Bishop Roger, "for reasonable causes", had resigned the see at the papal curia through three proctors, and Stewart's presence at the papal court was fortuitous, as the pope had previous reserved the see for his own appointment.
[4] He promised his services on the same day as John de Rait, newly Bishop of Aberdeen, that is, on 26 January 1351.
[1] He was consecrated by 9 March, when he was granted permission to borrow money in order to pay for his expenses at Avignon.
[6] His seal, along with that of other Scottish prelates, was appended to the obligation document drawn up for King David II's ransom at an assembly in Edinburgh on 26 September 1357.
[9] He was definitely dead by 9 May, when his successor Alexander de Kylwos received papal provision to the now vacant diocese.