Harold Plantagenet Mostyn (1865-1951) (1865–1951) Parents Mary Monk George Charles Mostyn Children unknown Mostyn George Anthony Mostyn Siblings unknown Mostyn Myrtle Mabel Muriel Mostyn Gwendolina Hyacinth Roma Mostyn Ranulph Edward Montague Mostyn Beatrice Violet Mary Mostyn Hubert George Charles Mostyn, 7th Baron Vaux of Harrowden Partners Elena Zammit