Born in England in 1970 Santa Montefiore grew up on a farm in Hampshire and was educated at Sherborne School for Girls. She read Spanish and Italian at Exeter University and spent much of the 90s in Buenos Aires, where her mother grew up. She converted to Judaism in 1998 and married historian Simon Sebag Montefiore in the Liberal Jewish Synagogue in London. They live with their two children, Lily and Sasha in London.
Santa Montefiore's novels have been translated into twenty languages and have sold more than three million copies in England and Europe.