Rosie Llewellyn-Jones, MBE, studied Urdu and Hindi at the School of Oriental and African Studies (SOAS), University of London. Her PhD thesis was published as A Fatal Friendship: The Nawabs, the British and the City of Lucknow in 1985.

She is a prolific author, specializing in colonial India during the eighteenth and nineteenth centuries. Her books include a trilogy on Major General Claude Martin, founder of La Martinière Schools, and histories of the Uprising of 1857.

Rosie was archivist at the Royal Society for Asian Affairs for ten years and a Council Member of the Royal Asiatic Society. She was awarded an MBE in 2015 for services to the British Association for Cemeteries in South Asia (BACSA) and British Indian studies.