William Douglas, 9th Earl of Angus (1533 – 1 July 1591, at Glenbervie) was a Scottish nobleman and zealous supporter of Mary, Queen of Scots.
[3] According to David Hume of Godscroft, Angus and Lord John Hamilton argued over precedence in the king's privy or outer chamber at Holyrood Palace.
Meanwhile, Sir John Carmichael, Captain of the Guard, had made the palace secure, and Angus had to signal to his followers from a window that all was well.
[4] The earldom was claimed by James VI, who brought a suit against Douglas, for reducing the charters connected with the title, but on 7 March 1589, a decision was given in favour of the latter.
[5] He had two charters under The Great Seal of Scotland, from Queen Mary, of the lands and barony of Glenbervie, Kemnay, and several others.