This collection of essays is the record of a symposium held at the Bibliotheca Hertziana in Rome in July 2000. Organized by Giancarla Periti, the subject of that event was broad, covering both ecclesiastical and secular patronage in northern Italy (principally Emilia-Romagna, but also parts of current-day Lombardy) and Inventio—artistic invention—as it was conceived and practiced there. That many of the participants have long been interlocutors—either as students at Johns Hopkins University, working with Charles...