Isola del Giglio
Toward the middle of the seventh century, the persecutions inflicted on the Eastern monks by the Monothelites obliged many of them to seek shelter in Rome. The pope committed this abbey to them as a refuge. The abbey was richly endowed, particularly by Charlemagne, who bestowed on it the Isola del Giglio off the Tuscan coast, as well as Orbetello and eleven other towns with a considerable territory. Its abbot exercised ordinary jurisdiction ("abbatia nullius") over this area.