Julian Whitehead read History at Oxford after which he joined the Intelligence Corps and spent a full career in government intelligence; his appointments have included Chief of Staff of the Intelligence Centre and Deputy Director of Defence Security. After leaving the Army he spent ten years as Security Adviser to Historic Royal Palaces and is now retired. His special interest is 17th century English History. Pen and Sword published his previous books Cavalier and Roundhead Spies - Intelligence in the Civil War and Commonwealth in 2009 and Rebellion in the Reign of Charles II in 2017 and Cromwell and his Women in 2018.