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In page Margaret Rolle, 15th Baroness Clinton:

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  • Secondly, in 1751, to Hon Sewallis Shirley, MP, 14th son of Robert Shirley, 1st Earl Ferrers.[3] Having previously been his mistress, they lived together in England for a while, and she sponsored his election as MP for Callington in 1754. But this marriage likewise ended in separation,[4] and she returned to Florence in 1755,[5] where she formed a liaison with the Count of Richecourt. Later Shirley became Comptroller of Queen Charlotte's Household.[citation needed]