In which year did this British peer and politician whose daughter was Henrietta Ponsonby, Countess of Bessborough pass away?
John Spencer, 1st Earl Spencer John Spencer, 1st Earl Spencer (19 December 1734 – 31 October 1783) was a British peer and politician.
George Ponsonby George Ponsonby PC (5 March 1755 – 8 July 1817), was a British lawyer and Whig politician. He served as Lord Chancellor of Ireland from 1806 to 1807 in the Ministry of All the Talents.