Originally published in 1962, The Long-Haired Kings iis concerned with the history of France in the period of gestation between the end of Roman imperial room in Gaul and the emergence of medieval France in the tenth century.

Originally published in 1962, The Long-Haired Kings is split into two parts. The first is concerned with the history of France in the period of gestation, between the end of Roman imperial room in Gaul, and the emergence of medieval France in the tenth century. It is principally concerned with the Franks, their institutions, laws and writers. The second half acts as an introduction to the hitherto unpublished study of Frankish kingship and surveys Merovingian rule from its beginning in the Rhineland wastes to the metamorphosis as Carolingian rule. This book is a unique contribution to the study of medieval history and was one of the first books of its time to provide a unique study of European languages.