Douglas coat of arms      

 

William Douglas, 4th Duke of Queensberry (1724-1810)

"Old Q", succeeded his cousin in 1778 as fourth Duke of Queensberry. From 1760 to 1789 he was lord of the bedchamber to King George III. He was famous as a patron of the turf, and infamous for his debauchery. He died unmarried, worth over a £150 million sterling. 

A friend of the Prince of Wales, he was appointed Gentleman of the Bedchamber to George III in 1760.

He was appointed a Knight of the Thistle in 1761 and was a Scottish representative peer from 1761. He was Vice Admiral of Scotland from 1767 to 1776. He was Lord Lieutenant of Dumfries from 1794 until 1810.

He succeeded his father to the Earldom of March in 1731 and his mother to the Earldom of Ruglen in 1748.  He succeeded his cousin Charles as Duke of Queensberry in 1778, and was created Baron Douglas of Amesbury in the Peerage of Great Britain in 1786. His father dying in 1731, his uncle, John Douglas of Broughton was appointed guardian. However, he died in 1732, and so his cousin Charles 3rd Duke of Queensberry was served 'tutor-at-law' as his nearest 'agnate'.

The title passed to Henry, who also succeeded as 3rd Duke of Buccleuch.

Father: William (2nd Earl March) Douglas
Mother: Anne (Countess Ruglen) Hamilton b: 5 APR 1698