Sybil Mary Douglas-Pennant (1901-1975) (1901–1975) Parents Blanche Georgiana FitzRoy Edward Douglas-Pennant, 3rd Baron Penrhyn Children Rosemary Portman Sheila Constance Portman Siblings Linda Douglas-Pennant Alan George Sholto Douglas-Pennant Hugh Douglas-Pennant, 4th Baron Penrhyn Pamela Douglas-Pennant Partners Edward Portman, 5th Viscount Portman