Sir Pyers Mostyn, 11th Baronet (1893-1937), Army captain (1893–1937) Parents Augusta Walmesley George Mostyn Children Sir Pyers Edward Mostyn, 12th Bt. Margaret Claire Mostyn Siblings Geraldine Mostyn Evelyn Mostyn George Mostyn Sir Basil Mostyn, 13th Bt. Hermione Mostyn Miriam Mostyn Partners Marjory Marks