Family: George Spencer, 4th. Duke of Marlborough KG, PC, FRS / Lady Caroline Russell (F5308)
m. 1762John Russell, 4th. Duke of Bedford KG, PC, FRS (1710-1771) |
Lady Gertrude Leveson-Gower (1715-1794) 
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| Lady Caroline Russell (1743-1811)
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Lady Anne Spencer (1774-1865)  |