This book explores the development and application of the law of treason in England across more than a thousand years, placing this legal history within a broader historical context.

Allen Boyer is a graduate of Vanderbilt University and the University of Virginia School of Law, and he earned his doctorate at the University of St Andrews. As a lawyer, he served as senior appellate counsel at the New York Stock Exchange Division of Enforcement. In a parallel career, he has published numerous articles on legal history, and five books, notably Sir Edward Coke and the Elizabethan Age and Rocky Boyer's War.

Mark Nicholls is a Fellow, and former President, Librarian and a Tutor of St John's College Cambridge. He has published extensively on British conspiracies and succession politics. His books include Investigating Gunpowder Plot (1991), A History of the Modern British Isles 1529-1603 (1999) and, with Penry Williams, Sir Walter Raleigh in Life and Legend (2011).