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
David Douglas, Lord Reston trip to visit Lord Kinnaird in his recently completed house, Rossie Priory. On Thursday 27 April he was buried in the burial ground of his father's cousin Adam Smith in Canongate Kirkyard on the Royal Mile in Edinburgh. In 1805 he married Elizabeth Craigie, his first cousin, and they had four children: 1. Elizabeth Craigie Douglas (1808–22) 2. Cecilia Margaret Douglas (1813–98), who married the Rev. William Bruce Cunningham; amongst their children were Robert Oliver Cunningham and David Douglas Cunningham 3. Adam Smith Douglas (1816–38) 4. David Anne Douglas (1819–79), who married the Rev James Bannerman, whose son was Rev