Acceded: 1224 About the year 1224 he was succeeded by Duncan, fifth Earl of Mar. Earl Duncan granted St Andrew’s Church, in Braemar, to the Priory of Monymusk, with an acre of land on the other side of the Water of Clunie. He also confirmed some of the grants made by his father, Earl Morgund. Duncan, Earl of Mar, was one of the witnesses to a charter by Alexander II. to Ness, his physician, of the lands of Banff, in the fief of Alyth, which was dated at Aberdeen on the 9th of October, 1232. Earl Duncan was succeeded by his son, William, sixth Earl of Mar. He is mentioned among the great barons of Scotland in the letter of fealty granted by Alexander II. to Henry III. of England in 1244.