Dorothy FitzRoy, Countess of Euston eldest child of Richard Boyle, 3rd Earl of Burlington, and Lady Dorothy Saville (1724–1742) Parents Dorothy Boyle, Countess of Burlington and Countess of Cork Richard Boyle, 3rd Earl of Burlington Children Siblings Charlotte Cavendish, Marchioness of Hartington Lady Julianna Boyle Partners George FitzRoy, Earl of Euston
