John Douglas, 7th Marquess of Queensberry
Encyclopedia
John Douglas, 7th Marquess of Queensberry (1779 – 19 December 1856), styled Lord John Douglas from May to December 1837, was a Scottish Whig politician.

Queensberry was the son of Sir William Douglas, 4th Baronet
Sir William Douglas, 4th Baronet
Sir William Douglas, 4th Baronet of Kelhead, was a Member of Parliament.The son of Sir John Douglas, 3rd Bt of Kelhead and his wife Christian Cunningham, daughter of Sir William Cunningham of Caprington, 2nd Bt., he was a descendant of William Douglas, 1st Earl of Queensberry.He served as Member...

 (died 16 May 1783), and his wife Grace (née Johnstone) who died 25 March 1836, and succeeded his elder brother, Charles (1777–1837) in the marquessate in December 1837. The same year he was appointed a Lord-in-Waiting
Lord-in-Waiting
Most Lords in Waiting are Government whips in the House of Lords who are members of the Royal Household of the Sovereign of the United Kingdom. As members of the Royal Household their duties are nominal, though they are occasionally required to meet visiting political and state leaders on visits...

 (government whip in the House of Lords
House of Lords
The House of Lords is the upper house of the Parliament of the United Kingdom. Like the House of Commons, it meets in the Palace of Westminster....

) in the Whig administration
Whig Government 1835-1841
Lord Melbourne's second government came to power after Sir Robert Peel's minority government resigned in 1835. Lord Palmerston returned as Foreign Secretary while Lord John Russell held his first major office as Home Secretary....

 of Lord Melbourne
William Lamb, 2nd Viscount Melbourne
William Lamb, 2nd Viscount Melbourne, PC, FRS was a British Whig statesman who served as Home Secretary and Prime Minister . He is best known for his intense and successful mentoring of Queen Victoria, at ages 18-21, in the ways of politics...

, a position he held until the government fell in 1841. Between 1837 and 1850 he also served as Lord-Lieutenant of Dumfriesshire.

Lord Queensberry married Sarah (died 13 November 1864), daughter of James Sholto Douglas, on 16 July 1817.
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