The paper discusses a particular exemplar of the canonization letter of Clare of Assisi, which is kept in the State Archive of Ascoli Piceno. This document shows a number of diplomatic peculiarities: first of all, it is one of the rare surviving examples of the papal canonization bull Clara claris preclara; at the same time it contains diplomatic elements, e.g. dating and address, differentiating it from the rest of the textual tradition. Through an analysis of both, internal and external features of the document concerned, as well as of the relationship between the Apostolic See and the institutions of the municipality and bishopric of Ascoli around the middle of the 13th century, the paper interprets the canonization bull as part of a close cooperation between the papacy and the local mendicant orders. The appendix comprises an edition of the canonization bull and eight further unpublished papal documents directed at the municipality and diocese of Ascoli.
Ascoli Piceno – Papacy – Clare of Assisi – Friars Minor – Ordo sancti Damiani