According to Julia Stonor, the Spanish aristocrat Pedro de Zulueta was her mother's father.

[2] She is the author of Sherman's Wife: A Wartime Childhood Among the English Aristocracy,[3] a memoir of her controversial mother Jeanne, Lady Camoys.

Stonor alleged in the book that her mother was an ardent Nazi sympathizer, and had been the lover of several men including Joachim von Ribbentrop and her own father-in-law.

In 1963, Stonor married Donald Robin Slomnicki Saunders (d. 1996); the marriage ended in divorce in 1977, being annulled in 1978.

[7] Two children were born: After the dissolution of her marriage, she resumed use of the name 'Stonor' by deed poll in 1978, assuming the additional name of 'Camoys'.