was an episcopal city from the fifth century. In January 591, Pope Gregory I appointed Balbinus, Bishop of Rusellæ, to be the Apostolic Visitor to the diocese of Populonia. On 9 April 1138, Pope Innocent II transferred the see to Grosseto, citing the large number of robbers in the area and the reduction of the people of the area to desolation and poverty. Rolandus, the last Bishop of Roselle, became the first Bishop of Grosseto. The transfer, however, did not proceed without incident. Some of the Canons of the cathedral of Roselle decided to stay in their accustomed home, and therefore demanded an apportionment of the Chapter's property with the Canons who had migrated to Grosseto. The dispute finally was submitted to Rome. On 23 December 1143, Pope Clement III wrote to the Provost and Chapter of Grosseto, ordering that the property and rights should be divided between the two groups; that the Canons in Roselle should elect their own Prior; but that they owed obedience to the bishop of Grosseto and due reverence to the Chapter of Grosseto.
Synods
A diocesan synod was an irregularly held, but important, meeting of the bishop of a diocese and his clergy. Its purpose was to proclaim generally the various decrees already issued by the bishop; to discuss and ratify measures on which the bishop chose to consult with his clergy; to publish statutes and decrees of the diocesan synod, of the provincial synod, and of the Holy See. Bishop Restaurus, O.F.M. held a diocesan synod in Grosseto in November 1320. On 14–15 April 1692, Bishop Cesare Ugolini presided over a diocesan synod in Grosseto, and issued statutes which were published. On 21–22 April 1705, a diocesan synod was held by Bishop Giacomo Falconetti, O.P.. From 1858 to 1867, for political and economic reasons due to the so-called Roman Question, the see remained vacant.
The 50 parishes of the diocese all fall within the province of Grosseto, in Tuscany. They are divided into four pastoral areas.
Grosseto urban area: San Lorenzo, San Francesco, San Giuseppe, San Giuseppe Bendetto Cottolengo, Sacro Cuore di Gesù, Santissimo Crocifisso, Maria Santissima Addolorata, Santa Lucia, Santa Famiglia, Beata Madre Teresa di Calcutta;
Hills area: Madonna di Lourdes, San Bartolomeo Apostolo, San Giovanni Battista, San Donato, Maria Santissima Ausiliatrice, Sant'Andrea Apostolo, San Cerbone, Sant'Antonio Abate, Santa Margherita, Santi Paolo e Barbara, San Niccolò, San Martino, San Michele Arcangelo, San Michele Arcangelo, Maria Santissima Madre della Chiesa, Santa Maria Assunta, San Giovanni Battista.
Books
p. 754-755.
Studies
Citter, Carlo . Documenti di Archeologia 8. Mantova: Società Archeologica Padana.
Kehr, Paul Fridolin. . vol. III. Berlin 1908. pp. 258–266.
Lanzoni, Francesco. . Faenza: F. Lega.
Minucci, Giotto. La città di Grosseto e i suoi vescovi . Florence: Lucio Pugliese.
Ronzani, Mauro. in: La cattedrale di Grosseto e il suo popolo 1295-1995. Atti del Convegno di studi storici Grosseto 3-4 novembre 1995, pp. 157–194.
Schwartz, Gerhard, , Leipzig-Berlin 1913, pp. 262–263.
