When did Margaret Georgiana Spencer's husband die?
John Spencer, 1st Earl Spencer John Spencer, 1st Earl Spencer (19 December 1734 – 31 October 1783) was a British peer and politician.
Lady Margaret Douglas-Home Lady Margaret Douglas-Home (née Alexandra Margaret Elizabeth Spencer, 4 July 1906 – 26 May 1996) was an English musician, writer and arts promoter. She founded the Burnham Market Festival and served as its director for almost two decades.