He is the first man known to have held the position of Archdeacon of St Andrews, his first known ecclesiastical post.
He occurs in this office in a document which can be dated to some point between August 1147 and June 1152.
Matthew was the principal prelate in charge of the consecration of John the Scot at Holyrood Abbey on 15 June 1180.
Matthew maintained his links with Fife, appearing in numerous charters relating to that province.
He had a brother named Odo who was the dapifer ("steward") of Ernald, Bishop of St Andrews (1160–63).