Sometime toward the end of the summer of 1122, armed clerics from the cathedral of Santa Maria in Capua proceeded from the cathedral houses, across town towards the Porta San Angelo. Immediately inside the gate was the complex of buildings belonging to the monks of San Benedetto, a dependency of Montecassino. These buildings were also proximate to the Norman stronghold within the city. The brothers of San Benedetto were preparing to bury one of their own. The cathedral clerics made their way into the church, seized the body lying in extremis, removed the monastic robe from the corpse, trammeled the garment under foot, and threw it into the piazza. The act of desecration was protested by the monks to Pope Calixtus II who granted the abbot the right to excommunicate the cathedral clerics.

This sacrilege was perhaps the most comic moment in a long struggle between Montecassino and the archbishop of Capua. The rivalry had begun with the renewal of monasticism at Cassino, but had become heated when Abbot Desiderius of Montecassino shifted his support to the Norman insurgents in 1062. A fairly successful truce between monks and clergy had been in effect for the last ten years of the reign of Paschal II but open hostilities began again after 1120 at the ascension of the Capuan Archbishop Otto. In October of that year he sent armed forces to ‘despoil’ the three Cassinese dependencies in the city: San Benedetto Pizzuli (from above), San Angelo Odaliskos, and Santo Rufo.