The Naples Cathedral (; ), or the Cathedral of the Assumption of Mary (), 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 ...
cathedral
A cathedral is a church (building), church that contains the of a bishop, thus serving as the central church of a diocese, Annual conferences within Methodism, conference, or episcopate. Churches with the function of "cathedral" are usually s ...
, the main church of
Naples
Naples ( ; ; ) is the Regions of Italy, regional capital of Campania and the third-largest city of Italy, after Rome and Milan, with a population of 908,082 within the city's administrative limits as of 2025, while its Metropolitan City of N ...
,
southern Italy
Southern Italy (, , or , ; ; ), also known as () or (; ; ; ), is a macroregion of Italy consisting of its southern Regions of Italy, regions.
The term "" today mostly refers to the regions that are associated with the people, lands or cultu ...
, and the seat of the
Archbishop of Naples
The Archdiocese of Naples () is a Latin Catholic archdiocese in southern Italy, the see being in Naples. A Christian community was founded there in the 1st century AD and the diocese of Naples was raised to the level of an Archdiocese in the 10 ...
. It is widely known as the Cathedral of Saint Januarius (), in honour of
the city's patron saint.
History
The present cathedral in
Angevin Gothic style () was commissioned by King
Charles I of Anjou. Construction continued during the reign of his successor,
Charles II (1285–1309) and was completed in the early 14th century under
Robert of Anjou. It was built on the foundations of two
palaeo-Christian basilica
In Ancient Roman architecture, a basilica (Greek Basiliké) was a large public building with multiple functions that was typically built alongside the town's forum. The basilica was in the Latin West equivalent to a stoa in the Greek Eas ...
s, whose traces can still be clearly seen. Underneath the building excavations have revealed Greek and Roman artifacts.
The
Archbishop's Palace adjoins the cathedral.
Interior and artwork
The cathedral gives access to the archaeological remains in the crypt of the neighbouring original palaeochristian church of
Santa Restituta where there is a Greek wall belonging to the temple of Apollo, in ''
opus reticulatum''. Under the apse the peristyle of a late imperial ''
domus'' can be seen; also a stretch of Roman aqueduct after the foundation of the city and a stretch of Greek road on an inclined plane.
Another attraction of the interior is the
Royal Chapel of the Treasure of San Gennaro, with
fresco
Fresco ( or frescoes) is a technique of mural painting executed upon freshly laid ("wet") lime plaster. Water is used as the vehicle for the dry-powder pigment to merge with the plaster, and with the setting of the plaster, the painting become ...
es by
Domenichino and
Giovanni Lanfranco, altarpieces by Domenichino,
Massimo Stanzione and
Jusepe Ribera, the rich high altar by
Francesco Solimena, the bronze railing by
Cosimo Fanzago and other artworks, including a reliquary by French masters of the 14th century.
Other artworks include an ''Assumption'' by
Pietro Perugino, canvasses by
Luca Giordano and the palaeo-Christian baptistery, with mosaics from the 4th century. The main chapel is a restoration of the 18th century, with a Baroque relief by
Pietro Bracci. The Minutolo Chapel, mentioned in
Boccaccio's ''
Decameron'', has 14th-century frescoes.
The
crypt
A crypt (from Greek κρύπτη (kryptē) ''wikt:crypta#Latin, crypta'' "Burial vault (tomb), vault") is a stone chamber beneath the floor of a church or other building. It typically contains coffins, Sarcophagus, sarcophagi, or Relic, religiou ...
is by the Lombard
Tommaso Malvito. The façade was reworked by
Enrico Alvino in the late 19th century, but retains the 15th century portal, including some sculptures by
Tino da Camaino.
File:Naples Cathedral - Duomo di Napoli, Central nave (5325).jpg, View of the interior, towards the apse
File:San Gennaro's chapel - Dome (Naples).jpg, Dome of the Royal Chapel of the Treasure of St. Januarius
File:Naples Cathedral - Duomo di Napoli, Apse, detail (5334).jpg, Detail of the apse
Miracle of the Blood
The church houses a vial of the blood of Saint Januarius, which is brought out three times a year, on the first Saturday in May, on 19 September and 16 December, when the dried blood usually liquefies. If the blood fails to liquefy, then legend has it that disaster will befall Naples.
A recent hypothesis by Garlaschelli, Ramaccini, and Della Sala is that the vial contains a
thixotropic gel,
[;] he also explained on the ''Blood Miracle'' of ''Riddles of the Dead'' series on
National Geographic Channel. In such a substance viscosity increases if left unstirred and decreases if stirred or moved. Researchers have proposed specifically a suspension of
hydrated iron oxide, FeO(OH), which reproduces the color and behavior of the 'blood' in the ampoule.
The suspension can be prepared from simple chemicals that would have been easily available locally since antiquity.
On March 21, 2015, the blood in the vial appeared to liquify during a visit by Pope Francis. This was taken as a sign of the saint's favour of the pope. The blood did not liquify when Pope Benedict XVI visited in 2007.
Burials
*
Saint Januarius
*
Pope Innocent IV
*
Charles I of Naples
*
Saint Restituta
*
Sisto Riario Sforza
*
Rinaldo Piscicello
*
Ascanio Filomarino
*
Alfonso Castaldo
References
{{Authority control
14th-century Roman Catholic church buildings in Italy
Gennaro
Burial places of popes
Gothic architecture in Naples
Roman Catholic cathedrals in Italy
Cathedrals in Campania
Burial sites of the Capetian House of Anjou