Caroline Fox was the only sister  of Henry Vassall-Fox, 3rd Baron Holland (1773-1840), of Holland House, who owned most of the land within the manor of Kensington, and was a niece of the Whig statesman Charles James Fox (1749-1806), who made Holland House a famous meeting place of prominent Whig politicians.
Caroline Fox was the sole sibling of Henry Vassall-Fox, 3rd Baron Holland, whose estate encompassed most of the land within Kensington Manor, and she was a relative of Charles James Fox, a notable Whig politician who made Holland House a prominent gathering place for political figures.