Fiennes Wykeham Mann Cornwallis (1890-1921) (1890–1921) Parents Mabel Leigh Fiennes Cornwallis, 1st Baron Cornwallis Children Siblings Vere Mabel Cornwallis Oswald Cornwallis Yvonne Cornwallis Julia Dorothy Cornwallis Wykeham Cornwallis, 2nd Baron Cornwallis Bridget Frances Kate Cornwallis