When her grandfather died in 1921, Edwina inherited his vast fortune, which included £2 million, the 5000 acres country seat of Broadlands, Romsey, Hampshire; Brook House in London; Moulton Paddocks estate in Newmarket, Suffolk; Classiebawn Castle, Mullaghmore, County Sligo, Ireland; and a seaside house at Branksome Dene in Bouremouth.