Basilica of San Gavino: Former Cathedral and Martyrs’ Shrine in Porto Torres
Site at a Glance
- Rating
- 4.6
- Popularity
- Medium
- Country
- Italy
- Primary era
- Medieval
- External website
- Open
- Eras represented
- Classical, Medieval, Early Modern
- Civilizations
- Byzantine, Crown of Aragon, Roman, Spanish
- Site type
- Religious
- Remains
- Basilica
On this page11 sections
History
The Basilica of San Gavino is a Romanesque church in Porto Torres, Italy, begun in the first half of the eleventh century by builders and stonecutters from Pisa. Formerly the cathedral of Turris Libisonis, it is now the principal church of Porto Torres, a parish church, and an important center for the veneration of Saints Gavino, Proto, and Gianuario, the local Turritan martyrs. The basilica is regarded as a major example of early Tuscan or Pisan Romanesque architecture and is the largest Romanesque church in Sardinia.
Earlier Christian foundations
Monte Angellu, where the basilica stands, was already a Christian burial and worship site before the present church was built. Archaeological investigations identified a Paleo-Christian necropolis, meaning an early Christian cemetery, together with two earlier basilicas dating from the fifth to the seventh centuries. One of them may have had a central plan and may have been built over the tomb of Saint Gabinus. His remains were later incorporated into the crypt of the present basilica.
Turris Libisonis was an episcopal seat from late antiquity until 1441. In that year, the bishop’s see was transferred to Sassari, ending the city’s role as a cathedral center. The basilica nevertheless retained its religious identity as the principal shrine associated with the Turritan martyrs, whose relics are linked with the crypt.
Eleventh-century construction
The earliest known documentary mention of a church dedicated to San Gavino dates from around 1065. Construction of the present basilica began in the first half of the eleventh century, traditionally under Gonnario Comita, a giudice, or ruler of one of Sardinia’s medieval territorial states. He commissioned Pisan builders and stonecutters. Work continued under his son, Torchitorio Barisone I de Lacon-Gunale, and the church was inaugurated in 1080 by Mariano, giudice of Torres, and Constantine, Archbishop of Castra.
The medieval Condaghe of San Gavino, a Sardinian documentary record associated with the church, preserves a foundation tradition. It tells how Saint Gavino appeared to the seriously ill Gonnario Comita and instructed him to build a church at Monte Angellu. The saint also directed him to recover the bodies of the Turritan martyrs from Balai. According to the tradition, Gonnario would be healed after striking the first blow for the foundations.
Later alterations and changing interpretations
Fifteenth-century work introduced Catalan Gothic elements into the Romanesque building. An inscription dated 1492 records this phase. At the same time, the Romanesque northwestern portal was moved to its present position, while Catalan builders added the large southern and northeastern portals.
The building’s original design remains debated. One interpretation holds that the western apse belonged to the first plan and that the church was later extended eastward by four pairs of columns and an eastern apse to meet changed liturgical needs. Another interpretation sees the basilica as double-apsed from the beginning, with the high altar originally placed at the center. The removal of interior plaster in 1978 exposed a construction joint near the western cruciform piers, supporting the possibility of two building stages carried out according to a unified plan. Differences between the eastern and western sections have also been used to argue for a later date for the more harmoniously developed western tract.
The unusual arrangement of two apses has been interpreted, particularly by the historian and architectural scholar Raffaello Delogu, as the result of practical and circumstantial requirements rather than purely artistic intention. Its spatial concepts have been compared with those found in Carolingian and Rhenish Romanesque architecture, although the basilica’s complete construction history remains unsettled.
Relics and medieval funerary use
In 1614, Archbishop Gavino Manca de Çedrelles ordered excavations to locate the remains of Saints Gavino, Proto, and Gianuario. The work uncovered the Paleo-Christian necropolis and remains of earlier buildings. The crypt was then arranged to receive the martyrs’ relics, reinforcing the basilica’s central religious role.
Funerary use also took place beside the northern side of the church during the Middle Ages. An inscription dated 1211 protects a privileged tomb whose occupant’s name has been lost. An earlier inscription commemorates Guido de Vada. These burials form part of the basilica’s long history as both a cathedral and a sacred place connected with local martyr veneration.
Remains
The basilica occupies the eastern part of the necropolis on Monte Angellu and extends between two courtyards, the atrio Comita and atrio Metropoli, along its long sides. Its longitudinal rectangular plan measures approximately 55 meters in length. Two apses, one at each short end and oriented east and west, define the building’s distinctive double-apsed form. The western end also has a faintly expressed transept-like arrangement.
Exterior and entrances
The exterior is built of squared limestone masonry and is articulated by pilasters, blind arcades, hanging arches, and Lombard bands. Lead roof plates cover the building, with transverse ribs emphasizing its elongated form. The principal entrance is on the southern side. This fifteenth-century twin portal belongs to the Catalan Gothic phase and is surmounted by a large round arch carried by small columns. Its carved capitals show angels holding coats of arms. The earlier Romanesque northwestern portal was moved during the same period, while the southern and northeastern portals were added by Catalan builders.
Nave, aisles, and columns
The interior has a high central nave flanked by two lower side aisles. Two series of round arches rest on twenty-two columns and three pairs of cruciform piers. The central nave is approximately three times wider than the aisles and has a wooden truss roof, whose timbers bear several red inscriptions dating from the seventeenth century. The side aisles are covered by cross vaults with low, undecorated transverse arches.
Many of the columns are spolia, architectural elements reused from earlier buildings. They include gray marble and pink granite, creating varied color within the otherwise largely monochrome stonework. Most of the capitals are Roman in origin, while the simple square blocks above them resemble forms used in eleventh-century Tuscan churches. The western tract also contains reused Paleo-Christian capitals, including examples with dove reliefs.
Eastern and western architectural details
The eastern tract contains details associated with Lombard sculptural influence. Its round-arched windows have stepped rather than smoothly sloping reveals, and its decoration includes majolica medallions. This section contains the building’s only two Romanesque capitals. One combines leaf, heart, and spiral motifs while echoing the dove reliefs of the reused Paleo-Christian capitals in the western tract.
The arrangement of the altars has changed over time. Until the mid-twentieth century, the high altar stood before the southwestern apse behind a Catalan Gothic screen. It is now placed within that apse as a simple altar table. Modern alterations removed the former screen, the choir, and several secondary altars.
Anti-crypt and crypt
The side aisles lead to the anti-crypt, a chamber associated with and providing access to the crypt. The Renaissance-style space contains numerous niches with marble statues of local martyrs. The northeastern apse contains a seventeenth-century wooden catafalque, a raised commemorative structure, with polychrome reclining statues of Saints Gavino, Proto, and Gianuario.
The crypt contains ancient Roman sarcophagi associated with the relics of the Turritan martyrs. In the entrance area, a further Roman sarcophagus dating from the third century bears a relief of Apollo and the nine Muses between a married couple. These surviving elements connect the basilica’s Romanesque structure with the earlier burial and religious history of Monte Angellu.
Inscriptions and earlier remains
Material from the earlier churches and necropolis survives beneath or within the Romanesque basilica. A Byzantine monumental inscription in the right side aisle celebrates the victory of the dux Constantinus over the Lombards, a Germanic people whose kingdom controlled much of Italy during the early medieval period. The inscription is considered one of the most important examples of its period in Sardinia and adds evidence of the site’s continued religious and political importance before the present church was completed.
