Based on impressive and wide-ranging research in national and local archives in the United Kingdom and in the Folger and Yale University Libraries in the United States, this is the first full-length study of its subject and its significance for the course, and ultimate outcome, of the English Revolution. R.C. Richardson, Clio Turncoats and Renegadoes is an important and sensitive study of an issue that has been critically absent from the ongoing debate on allegiance and political culture in the English Civil War period. Dr Elliot Vernon, Reviews in History A painstaking exploration of social, cultural, political, chronological and regional patterns and attitudes in and to a phenomenon conditioned by the changing tides of war, opportunism and the pressing weight of external pressures. R. C. Richardson, Times Higher Education By combining high-level storytelling with a thoroughness and shrewdness of judgment, it is a work that is more than the sum of its parts. John Morill, BBC History Magazine a thoroughly researched study of changing sides during the Civil Wars. ... a very original and stimulating study. Northern History