William, the second son, an eminent churchman of his day, was, whilst dean of Glasgow, 2d October, 1530, appointed high treasurer of Scotland, and about the same time was made provost of Lincluden, an ecclesiastical title, under which he sat in parliament, 26th April 1531. In November of the following year, he was elected bishop of Aberdeen, and in February 1534, along with Sir Adam Otterburn of Redhall, his Majesty’s advocate, he was sent on an embassy to England, to treat of a pacification, which was happily concluded. In 1537, he resigned the office of high treasurer, and died 17th April 1545.

http://www.electricscotland.com/history/nation/blantyre.htm