William Douglas, 4th Duke of Queensberry, KT (16 December 1724 – 23 December 1810) was a Scottish noble landowner. He was popularly known as Old Q and was reputed as a high-stakes gambler.[1] In 1799 he was estimated the eighth-wealthiest man (or small family unit) in Britain, owning £1M (equivalent to £124,100,000 in 2023). He is one of ten known British millionaires that year, the royal family excluded.
Family and royal appointee
Born in Peebles, Queensberry was the only son of William Douglas, 2nd Earl of March, and his wife, Lady Anne Hamilton. He was great-grandson of the 1st Duke.
He succeeded his father in the Earldom of March in 1731 and his mother in the Earldom of Ruglen in 1748. He succeeded his cousin Charles as Duke of Queensberry in 1778, and was created Lord Douglas, Baron Douglas, of Amesbury in the County of Wiltshire in the Peerage of Great Britain on 8 August 1786.[4]
In 1799 he was estimated the eighth-wealthiest man (or small family unit) in Britain, owning £1M (equivalent to £124,100,000 in 2023).[5] He was one of ten known British millionaires in 1799.[5]
He developed a strong passion for Miss Frances Pelham at the age of 28. So much so that he deliberately bought a house next door to her and had a bow window built so that he could sit and spy on her as she came and went. In his 60s he proposed to the teenage daughter of his next door neighbour in Picadilly on three occasions. But was turned down despite his immense wealth.