Euphemia was the daughter of unknown parents. The date and place of her birth have not been found.
Her husband was sir Thomas Lyon, who she married in 1586. The place has not been found. They had no known children.
Note 1
William Douglas, Earl of Morton, b. 1539-1540, of, Loch Leven, Kinross, Kinross-shire, Scotland , d. 27 Sep 1606, Loch Leven Castle, Castle Island, Kinross, Kinross-shire, Scotland & Agnes Leslie, b. Abt 1541, of, Balmain , d. Aft Feb 1592/93