Mary Vincent (died 1823) (1748–1823) Parents Sir Francis Vincent, 7th Baronet Mary Howard Children Archibald Primrose, 4th Earl of Rosebery Mary Shepherd Lady Dorothea Arabella Primrose Lady Charlotte Primrose Francis Primrose Siblings Sir Francis Vincent, 8th Baronet Henry Dormer Vincent Partners Neil Primrose, 3rd Earl of Rosebery