William Beckford

'William Beckford (19 December 1709 – 21 June 1770) was a well-known political figure in 18th-century London, who twice held the office of Lord Mayor of London (1762 and 1769). His vast wealth came largely from his plantations in Jamaica and the large numbers of slaves working on these plantations. He was, and is, often referred to as "Alderman Beckford" to distinguish him from his son William Thomas Beckford, the author and art collector. Beckford was born in Jamaica the grandson of Colonel Peter Beckford. He was sent to England by his family in 1723 to be educated. He studied at Westminster School, and made his career in the City of London....As a rich patron, he used his 'interest' in favour of William Pitt the Elder, sponsoring and encouraging his political rise, supporting the Whig cause in general and the West Indies sugar industry (from which his fortune came)in particular.' https://en.wikipedia.org/wiki/William_Beckford_(politician)