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
James Douglas, Lord of Douglas French eyewitness account; "The Lord James Douglas took with him about two hundred men-at-arms, and passed the river far off from the host so that he was not perceived: and suddenly he broke into the English host about midnight crying 'Douglas!' 'Douglas!' 'Ye shall all die thieves of England'; and he slew three hundred men, some in their beds and some scarcely ready: and he stroke his horse with spurs, and came to the King's tent, always crying 'Douglas!', and stroke asunder two or three cords of the King's tent." Panic and confusion spread throughout the camp: Edward himself only