THE BISHOPS’ BOOKS OF CITTÀ DI CASTELLO IN CONTEXT

Revisiting Robert Brentano's 1960 article in Traditio on “The Bishops’ Books of Città di Castello,” this contribution challenges a reigning narrative of the “documentary revolution” in medieval Italy as primarily the achievement of the thirteenth-century communal governments of the north. While these urban ruling regimes did produce prodigious numbers of documents and new documentary forms, they were not the earliest innovators. By broadening the scope of analysis to include all the early administrative codices surviving in Città di Castello — those of the city's communal government, cathedral chapter, and bishopric — the author demonstrates that the initial leap from administrative reliance on single sheet parchments to registers occurred earliest in the cathedral chapter (by 1192), then in the bishop's court (1207), and finally more than a decade later in the commune (1221). At least in this one small Umbrian town, ecclesiastical institutions were the earliest innovators. The evidence of Città di Castello also indicates that political instability and its related economic effects drove innovation, not the reform initiatives of Innocent III and the Fourth Lateran Council. Local ecclesiastical leaders, not popes, were the innovators.