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, 1st Lord Mordington James Douglas, 1st Lord Mordington Sir James Douglas, 1st Lord Mordington (died 11 February 1656) was the second son of William Douglas, 10th Earl of Angus by his spouse Elizabeth, daughter of Laurence Oliphant, 4th Lord Oliphant. He was created, by King Charles I, a Lord of Parliament on 14 November 1641 as Lord Mordington. He had been knighted prior to 1621, and obtained a grant from the Crown of the lands and barony of Over Mordington in Berwickshire on 24 August 1634, although he appears to have laready been in possession, as a minute of the Privy Council of