Helen Ruth Castor FRSL (born 4 August 1968 in Cambridge) is a British historian of the medieval and Tudor period and a BBC broadcaster. She taught history at the University of Cambridge and is the author of books including Blood and Roses (2005) and She-Wolves: The Women Who Ruled England Before Elizabeth (2010). Programmes she has presented include BBC Radio 4's Making History and She-Wolves on BBC Four.
Joan of Arc (French: Jeanne d'Arc pronounced [ʒan daʁk]; c. 1412 – 30 May 1431) is a patron saint of France, honored as a defender of the French nation for her role in the siege of Orléans and her insistence on the coronation of Charles VII of France during the Hundred Years' War. Stating that she was acting under divine guidance, she became a military leader who transcended gender roles and gained recognition as a savior of France.