Marcia Anderson-Pelham, Countess of Yarborough British countess (1863–1926) Parents Mary Curteis Sackville Lane-Fox, 12th Baron Conyers Children Sackville Pelham, 5th Earl of Yarborough Marcus Pelham, 6th Earl of Yarborough D'Arcy Pelham Charles Pelham, Lord Worsley Siblings Violet Herbert, Countess of Powis Partners Charles Pelham, 4th Earl of Yarborough