Although it cannot be proven except circumstantially, Douglas was possibly related along maternal lines to
Archibald, Lord of Douglas (c.1198-1238) or related to Archibald's wife Margaret Crawford. There is charter evidence of the Lord of Douglas receiving the lands of
Hermiston from
Máel Coluim II, Earl of Fife Sir Andrew is the ancestor of the
Earls of Morton, and the family of
Douglas of Mains. Recent Y-DNA studies have shown this Andrew of Douglas to be unrelated paternally to descendants of Archibald's father William 1st Lord of Douglas. ==See also==