Georgiana Cholmondeley, Marchioness of Cholmondeley
She was the daughter of Peregrine Bertie, 3rd Duke of Ancaster and Kesteven, and his second wife Mary.They had three children:[1] The earl already had an illegitimate daughter, Harriet, born around 1790 to his mistress, Madame Saint-Albin.[3] Through the marriage between the earl and Georgina Bertie, the ancient hereditary office of Lord Great Chamberlain (which had been held by her brother, Robert Bertie, 4th Duke of Ancaster and Kesteven, until his death in 1779) passed into the Cholmondeley family.Lord Cholmondeley, who was fifteen years his wife's senior, died in 1827, and was succeeded by his eldest son George.The dowager marchioness died at Carlton House Terrace in London, aged 73.