William Alexander Archibald Hamilton, 11th Duke of Hamilton and 8th Duke of Brandon (19 February 1811 – 8 July 1863) styled Earl of Angus and Arran before 1819 and Marquess of Douglas and Clydesdale between 1819 and 1852, was a Scottish nobleman and the Premier Peer of Scotland.

In that year, he purchased the house located at 22 Arlington Street in St. James's, a district of the City of Westminster in central London from Henry Somerset, 7th Duke of Beaufort for £60,000 (equivalent to £8,235,000 in 2023).

The duke lavished expenses on the house for approximately a decade, including installing iron firebacks with his coronet and motto.

Upon his death, the house passed to his widow who sold it to Ivor Guest, 1st Baron Wimborne via auction in 1867.

According to Lady Helena Gleichen, they accidentally caused a scandal at the French Court when courtiers were told that Lord Hamilton would not be joining them for the hunt because of an injury and the Empress said: "Yes, I saw the bruise on his leg.