When did Margaret Georgiana Spencer's husband die?
Georgiana Spencer, Countess Spencer Margaret Georgiana Spencer, Countess Spencer ("née" Poyntz; 8 May 1737 – 18 March 1814), was an English philanthropist. She was born at St James's Palace as the daughter of a diplomat and a maid of honour to Caroline of Ansbach. In 1754, she married John Spencer, one of the wealthiest men of the era. A love match, the marriage resulted in the births of three surviving children, which included Georgiana Cavendish, Duchess of Devonshire. The Spencers became earl and countess in 1765, a reward granted by the Duke of Newcastle for John's political loyalty to the Whig party.
George Spencer, 2nd Earl Spencer George John Spencer, 2nd Earl Spencer, (1 September 1758 – 10 November 1834), styled Viscount Althorp from 1765 to 1783, was a British Whig politician. He notably served as Home Secretary from 1806 to 1807 in the Ministry of All the Talents.