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
John Douglas, Lord of Balvenie the brothers ratified the Treaty of Ardtornish-Westminster, on behalf of the English with the Lord of the Isles. For his part in these negotiations, the Scottish council of regency, put a price upon Balvenie's head of 1,200 Merks (the equivalent of £45,000 pounds sterling in the present day). In 1463 Balvenie was again in Scotland trying to raise men to the Douglas standard, but was captured by members of the Scotts of Liddesdale. He was taken to Edinburgh, where he was incarcerated for twelve days before being beheaded. John Douglas, Lord of Balvenie John Douglas, Lord of Balvenie (or Balveny,