Any society sufficiently cohesive to evolve even the most rudimentary political structure will also, as a matter of course, develop a set of shared concepts about the nature of that society and a justification of its political structure. Scholars usually ascribe the word “Ideology” only to a set of values which is highly abstract, rational, and articulated in the form of theoretical treatises, so that in the modern period liberalism or Marxism is considered as an ideology, but this is not entirely warranted. Medieval states frequently expressed their social and political myths through the medium of ceremonial and symbol, hence the considerable attention to artistic evidence given by the great scholar of medieval political theology Ernst Kantorowicz or by his student Michael Cherniavsky, whose field was Medieval Rus',1 Even in medieval western Europe, but overwhelmingly in medieval Rus', much political thought, like our current symbolic respect for the “flag,” was expressed in extremely laconic terms. Phrases, concepts, and titles served in lieu largely of theoretical treatises, and ideologues demonstrated their creativity and originality in the manipulation of these phrases, concepts, and titles, not the elaboration of intellectual definitions of their significance. Such definitions were superfluous to contemporaries who all understood the shared vocabulary of political discourse, what we might call a political culture, but their absence compels the modern-day historian to rely upon his informed imagination to decode such social and political myths in order to establish their intended meanings. This is not to imply that modern political ideologies lack overarching myths. Indeed the very opposite is exactly the case; in Russian history the myth of the “people” (narod) in Populist thought and the myths of the proletariat or (later) the Party in Marxist/Bolshevik writings spring readily to mind. The lack of elaborate theoretical discussions of comparable myths in pre-Petrine history inevitably requires different methods of study from those one can apply to subsequent centuries.