Duncan Of Mar IV Earl

Duncan was born about 1153 in , , , Scotland.  Duncan's father was Morgund MacGylocher Of Mar Earl and his mother is Agnes ().  His paternal grandfather is Gillocher Of Mar Earl.  He was an only child.  He died on February 7th, 1244.  He was buried in 1244.

He had a biological son and a biological daughter, named William Mar and Margaret.