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.
Lord Charles Spencer-Churchill Lord Charles Spencer-Churchill (3 December 1794 – 28 April 1840) was a British army officer and politician. He was the second son of George Spencer-Churchill, 5th Duke of Marlborough.