Territorial Abbacy of Monte Oliveto Maggiore, Italy 🇮🇹

Rite: Roman (Latin)

Name: Monte Oliveto Maggiore / Sanctæ Mariæ Montis Oliveti Maioris (Latin)

Immediately subject to the Holy See

Neighbouring Dioceses: Siena–Colle di Val d’Elsa–Montalcino (←), Arezzo–Cortona–Sansepolcro (↗), Montepulciano–Chiusi–Pienza (↘)

Depends on: Dicastery for Bishops

Websites:

Celebrations

Patron Saint: S. Maria Bambina

Liturgical Calendar (National) 📅

History

1899: Established as Territorial Abbacy of Monte Oliveto Maggiore / Sanctæ Mariæ Montis Oliveti Maioris (Latin) (from Diocese of Arezzo)
1947.05.10: Gained territory from Diocese of Arezzo and Diocese of Pienza
1977.10.28: Gained territory from Diocese of Pienza

Contact Info

Address: Abbazia di Monte Oliveto Maggiore, 53041 Chiusure, Siena, Italy

Phone: 0577.70.76.11

Present Prelates

Abbot Ordinary (2010.10.21 – ...):

Abbot Diego Gualtiero Maria Rosa, O.S.B. Oliv. (73)

Abbot General of Benedictine Congregation of Our Lady of Mount Olivet (Olivetans)

Ordinaries

Abbot Ordinaries of Monte Oliveto Maggiore (Roman Rite)

Abbot Diego Gualtiero Maria Rosa, O.S.B. Oliv. (73)
(2010.10.21 – ...)

Abbot Ordinary of Monte Oliveto Maggiore (Italy)
Abbot General of Benedictine Congregation of Our Lady of Mount Olivet (Olivetans)

Sub tuum præsidium

Born:	1953.02.20 (Borgo Poncarale, BS, Italy)
Ordained Priest:	1980.06.22

Abbot Ordinary of Monte Oliveto Maggiore (Italy) (2010.10.21 – ...)

Abbot General of Benedictine Congregation of Our Lady of Mount Olivet (Olivetans) (2010.10.21 – ...)

Abbot Michelangelo Riccardo Maria Tiribilli, O.S.B. Oliv.
(1992.10.16 – 2010.10.18)

Born:	1937.03.18 (Firenze, Italy)
Ordained Priest:	1961.07.02
Died:	2025.04.11 (Monte Oliveto Maggiore, Italy † 88)

Abbot Ordinary of Monte Oliveto Maggiore (Italy) (1992.10.16 – 2010.10.18)

Abbot General of Benedictine Congregation of Our Lady of Mount Olivet (Olivetans) (1992.10.16 – 2010.10.18)

Abbot Maurizio Benvenuto Maria Contorni, O.S.B. Oliv.
(1986.11.29 – 1992)

Born:	1921.08.18 (Abbadia San Salvatore, Italy)
Ordained Priest:	1947.07.13
Died:	1996.05.03 (Camogli, Italy † 74)

Abbot Ordinary of Monte Oliveto Maggiore (Italy) ([1986.11.25] 1986.11.29 – 1992)

Abbot General of Benedictine Congregation of Our Lady of Mount Olivet (Olivetans) (1986.11.29 – 1992)

Abbot Divo Angelo Maria Sabatini, O.S.B. Oliv.
(1970.12.05 – 1989.01.15)

Born:	1912.02.13 (Abbadia San Salvatore, Italy)
Ordained Priest:	1935.07.21
Died:	1989.01.15 (Monte Oliveto Maggiore, Italy † 76)

Abbot Ordinary of Monte Oliveto Maggiore (Italy) ([1970.10.09] 1970.12.05 – 1989.01.15)

Abbot General of Benedictine Congregation of Our Lady of Mount Olivet (Olivetans) (1970.12.05 – 1989.01.15)

Abbot Pietro Romualdo M. Zilianti, O.S.B. Oliv.
(1947.05.10 – 1975.12.15)

Born:	1901.04.04 (bbadia San Salvatore, Italy)
Ordained Priest:	1924.03.15
Died:	1975.12.15 (Bologna, Italy † 74)

Abbot Ordinary of Monte Oliveto Maggiore (Italy) ([1946.09.24] 1947.05.10 – 1975.12.15)

Abbot General of Benedictine Congregation of Our Lady of Mount Olivet (Olivetans) (1947.05.10 – 1975.12.15)

Abbot Luigi Maria Perego, O.S.B. Oliv.
(1928.10.15 – 1947.01.28)

Born:	1864.04.29 (Arcore, Italy)
Ordained Priest:	1888.05.26
Died:	1947.01.28 († 82)

Abbot Ordinary of Monte Oliveto Maggiore (Italy) (1928.10.15 – 1947.01.28)

Abbot General of Benedictine Congregation of Our Lady of Mount Olivet (Olivetans) (1928.10.15 – 1947.01.28)

Abbot Mauro M. Parodi, O.S.B. Oliv.
(1917.09.10 – 1928.08.10)

Born:	1856.07.02 (Begato, Italy)
Ordained Priest:	1879
Died:	1928.08.10 (Seregno, Italy † 72)

Abbot Ordinary of Monte Oliveto Maggiore (Italy) (1917.09.10 – 1928.08.10)

Abbot General of Benedictine Congregation of Our Lady of Mount Olivet (Olivetans) (1917.09.10 – 1928.08.10)

Abbot Ildebrando Polliuti, O.S.B. Oliv.
(1899.01.08 – 1917.09.10)

Born:	1854.08.24 (Piacenza, Italy)
Died:	1917.09.10 († 63)

Abbot Ordinary of Monte Oliveto Maggiore (Italy) (1899.01.08 – 1917.09.10)

Abbot General of Benedictine Congregation of Our Lady of Mount Olivet (Olivetans) (1899.01.08 – 1917.09.10)