Sant'Agostino is a

Roman Catholic The Catholic Church (), also known as the Roman Catholic Church, is the largest Christian church, with 1.27 to 1.41 billion baptized Catholics worldwide as of 2025. It is among the world's oldest and largest international institut ...

church located in

Massa Marittima Massa Marittima (Latin: ''Massa Veternensis'') is a town and ''comune'' of the province of Grosseto, southern Tuscany, Italy, 49 km NNW of Grosseto. There are mineral springs, mines of iron, mercury, lignite and copper, with foundries, iron ...

, region of

Tuscany Tuscany ( ; ) is a Regions of Italy, region in central Italy with an area of about and a population of 3,660,834 inhabitants as of 2025. The capital city is Florence. Tuscany is known for its landscapes, history, artistic legacy, and its in ...

, Italy. The church has

Gothic Gothic or Gothics may refer to: People and languages *Goths or Gothic people, a Germanic people **Gothic language, an extinct East Germanic language spoken by the Goths **Gothic alphabet, an alphabet used to write the Gothic language ** Gothic ( ...

and

Renaissance architecture Renaissance architecture is the European architecture of the period between the early 15th and early 16th centuries in different regions, demonstrating a conscious revival and development of certain elements of Ancient Greece, ancient Greek and ...

elements in the apse (1350) and choir (1520) respectively. The church with stone facade was begun in 1299 for the

Augustinian order Augustinians are members of several religious orders that follow the Rule of Saint Augustine, written about 400 A.D. by Augustine of Hippo. There are two distinct types of Augustinians in Catholic religious orders dating back to the 12th–13th ...

, but the apse was completed by 1350 in a gothic style with tall narrow windows. The interior has a ''Sant'Guglielmo'' by

Antonio Nasini Francesco Nasini (Piancastagnaio, either 1611 or 1621– Castel del Piano, 1695) was an Italian painter of the Baroque period, active mainly in towns outside of Siena, Italy. Francesco was the progenitor of a pedigree of painters. He had a brothe ...

, an ''Annunciation'' (1640) by

Jacopo da Empoli 250px, ''Martyrdom of St. Sebastian'', San Lorenzo, Florence Jacopo da Empoli (30 April 1551 – 30 September 1640) was an Italian Florentine Reformist painter. Born in Florence as Jacopo Chimenti (Empoli being the birthplace of his father), ...

and a ''Madonna, Child, and Saints'' and ''Annunciation'' (1639) by

Rutilio Manetti Rutilio di Lorenzo Manetti (c. 1571 – 22 July 1639) was an Italian painter of late-Mannerism or proto-Baroque, active mainly in Siena. Biography He was influenced and/or taught by the local artists Francesco Vanni and Ventura Salimbeni. He is ...

. The church once housed for some years a ''Maestà'' by

Ambrogio Lorenzetti Ambrogio Lorenzetti (; – after 9 August 1348) was an Italian painter of the Sienese school. He was active from approximately 1317 to 1348. He painted ''The Allegory of Good and Bad Government'' in the Sala dei Nove (Salon of Nine or Council Ro ...

, originally made for the nearby Oratory of San Pietro all'Orto, and now held in the city gallery.Massa Marittima: arte e storia
by Luigi Petrocchi, 1900, page 129-138.

References

{{Authority control Churches in the province of Grosseto Agostino Agostino Buildings and structures completed in 1350 Churches completed in the 1350s 14th-century Roman Catholic church buildings in Italy Massa Marittima