Lady Mary Hyde (1669-1708) (1669–1708) Parents Henrietta Hyde, Countess of Rochester Laurence Hyde, 1st Earl of Rochester Children Letitia Seymour-Conway Catherine Seymour-Conway Mary Seymour-Conway Henrietta Seymour-Conway Siblings Henry Hyde, 4th Earl of Clarendon Lady Anne Hyde Henrietta Hyde Partners Francis Seymour-Conway, 1st Baron Conway