The literature about the medieval state is enormous. Many very distinguished scholars, especially in Germany, have given their ripest thought to the problems which the word “state” suggests when it is applied to medieval society. In recent years several manful efforts have been made to extricate the subject from the trammels of law and philosophy. In Germany, for example, Georg von Below, Fritz Kern and, latest of all, Heinrich Mitteis, have, each in his own way, tried to deal with it as earlier writers, like Waitz, Ranke and Ficker, dealt with it. They have approached it from a political or social or economic point of view, and have made themselves independent, so far as they could, of the categories of the jurists and the generalisations suggested by a study of medieval political thought. Even these exceptional men have not found it easy to avoid categories of their own.