 In his classic, The King’s Two Bodies (1957), medievalist Ernst Kantorowicz describes a profound transformation in the concept of political authority over the course of the Middle Ages. The change began when the concept of the body of Christ evolved into a notion of two bodies — one, the corpus naturale, the consecrated host on the altar, the other, the corpus mysticum, the social body of the church with its attendant administrative structure. This latter notion — of a collective social organization having an enduring, mystical essence — would come to be transferred to political entities, the body politic. Kantorowicz then describes the emergence, in the late Middle Ages, of the concept of the king’s two bodies, vivified in Shakespeare’s Richard II and applicable to the early modern body politic. Whereas the king’s natural, mortal body would pass away with his death, he was also thought to have an enduring, supernatural one that could not be destroyed, even by assassination, for it represented the mystical dignity and justice of the body politic. The modern polity that emerged dominant in early modern Europe manifested the qualities of the collectivity that Kantorowicz described — a single, unified one, confined within territorial borders, possessing a single set of interests, ruled by an authority that was bundled into a single entity and held supremacy in advancing the interests of the polity. Though in early modern times, kings would hold this authority, later practitioners of it would include the people ruling through a constitution, nations, the Communist Party, dictators, juntas, and theocracies. The modern polity is known as the state, and the fundamental characteristic of authority within it, sovereignty.