Lord Francis Douglas Marquess of Queensberry; a younger brother, Lord Archibald Edward Douglas (1850–1938), who became a clergyman; and a younger brother and sister, the twins Lord James Douglas (d. 1891) and Lady Florence Douglas (1855–1905), who married Sir Alexander Beaumont Churchill Dixie, 11th Baronet. He was an uncle of Oscar Wilde's lover Lord Alfred Douglas, and a younger brother of John Douglas, 9th Marquess of Queensberry. In 1858, Douglas's father, Lord Queensberry, died in what was reported as a shooting accident, but his death was widely believed to have been suicide. In 1862, his mother, Lady Queensberry, converted to Roman Catholicism and
William IV, Lord of Douglas parson of Roxburgh who turned much of the Douglas patrimony over to his cousin William Douglas of Lothian. In 1778, excavations at the Auld Kirk at North Berwick uncovered the matrix of the seal of William, Lord Douglas. This seal stamp shows the first representation of the heart of Bruce in Douglas heraldry, and shows that it was assumed immediately after the death of Sir James Douglas. William IV, Lord of Douglas William, Lord of Douglas (died 1333) was a short-lived Scottish nobleman, the son of Sir James Douglas and an unknown mother. Little is known of Lord Douglas's life