| Abbot Ordinary: | vacant |
| Apostolic Administrator (2013.11.04 – ...): |  Cardinal Marcello Semeraro (76)Cardinal-Deacon of S. Maria in Domnica Prefect of Dicastery for the Causes of Saints Pontifical Delegate for Italian Basilian Order of Grottaferrata |
Cities (Lazio)  | Churches (2) |
| Grottaferrata |  Santa Maria della Grazie (Cathedral, Abbatial)  Monastero Esarchico di Santa Maria di Grottaferrata Abbazia di San Nilo Exarchial Monastery of St. Mary of Grottaferrata |
| Grottaferrata |  San Nilo (Monastery) Abbey of St. Nilo |
Last updated on 2024.12.13
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