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In 1703, when his age was seventy-six, Stephen Fox took a second wife, by whom he had two sons, who became founders of two families; Stephen, the elder, became first Earl of Ilchester; Henry, the younger, who married Georgina, daughter of the Duke of Richmond, and was himself created, in 1763, Baron Holland of Farley. Of the children of that marriage Charles James Fox was the third son, born on the 24th of January, 1749. The second son had died in infancy.