Tatiana de Rosnay was born on 28 September 1961 in Neuilly-sur-Seine, France. She is a celebrated French writer, journalist, and screenwriter. De Rosnay's heritage is a rich tapestry of English, French, and Russian descent, which has contributed to her diverse and multicultural outlook on life. She is renowned for her compelling storytelling, encapsulated in several novels including the international bestseller Sarah's Key, A Secret Kept (Boomerang), The House I Loved (Rose), The Other Story (A L'Encre Russe), and Manderley Forever.

De Rosnay's latest work, The Rain Watcher, was published in October 2018 by Saint Martins Press in the USA and Éditions Héloïse d'Ormesson in France, alongside releases in Norway, Holland, Sweden, and Germany. Beyond her prolific writing career, Tatiana de Rosnay is an active presence on social media, engaging with her readers through Twitter and Instagram, and sharing insights into her life and works on her official website and Facebook page.

Tatiana de Rosnay is married and resides in Paris with her family, where she continues to inspire and enthrall readers around the world with her novels.