Аннотация:A canon of St. Peter’s, cantor, and liturgist named Benedict composed an ordo, a liturgical script, ca. 1140–1143. Though long held as a vivid and accurate testimony to contemporary liturgy in Rome, it has more recently been dismissed as a compilation of older sources that reflects an antiquated form of worship. A comparison of the liturgy of the ordo with contemporary sources proves instead that Benedict was an accurate observer of the contemporary liturgy of Rome. When correctly understood, his ordo gives us new information about the pivotal role liturgy played in the papacy of Pope Innocent II (1130–1143). Benedict’s ordo preserves some of Innocent II’s newly crafted ceremonies, which were propaganda designed to solidify his hold on the papacy. This article further suggests the relevance of recent discussions about medieval ritual for the liturgy and the significance of the liturgy for medieval history.