List of oldest church buildings
Europe
Valkum (Fenekpuszta) Built before 433 AD remains of a Bazilika in Hungary near lake Balaton

List of oldest church buildings

Section Title: Europe
Table Section Text: Valkum (Fenekpuszta) Built before 433 AD remains of a Bazilika in Hungary near lake Balaton

Building	Image	Location	Country	Oldest Part	Denomination	Notes

Cathedral of Saint Domnius	-	Split	Croatia	295–305	Roman Catholic	Built 295–305 as the Mausoleum of emperor Diocletian, is the second oldest structure used by any Christian Cathedral. Consecrated in 641 AD, is regarded as the oldest Catholic cathedral in the world that remains in use in its original structure, without near-complete renovation at a later date.

Rotunda of St. George	-	Thessaloniki	Greece	306	Greek Orthodox	Built as an imperial mausoleum or temple, currently a museum, with church access for various festivities. Largely as built in 305; consecrated later in the century.

Santi Cosma e Damiano	-	Rome	Italy	c. 309	Roman Catholic	Occupies the former space of the Temple of Romulus in the Roman Forum.

Archbasilica of St. John Lateran	-	Rome	Italy	c. 313-324	Roman Catholic	Oldest Christian basilica. Was founded after a donation of Costantine the Great to pope Mitiades, right after the Edict of Milan.

Panagia Ekatontapiliani	-	Parikia	Greece	326	Greek Orthodox	Panagia Ekatontapyliani (also known as the Church of 100 Doors) is a historic Byzantine church complex.

Stavrovouni Monastery	-	Larnaca	Cyprus	327–329	Greek Orthodox	It was founded by Saint Helena the mother of the Byzantine Emperor Constantine the Great at the place where after a miracle she found the lost Holy Cross on her way back from her pilgrimage to the Holy Land.

St. Peter's Basilica	-	Vatican City	Vatican City State	333	Roman Catholic	Largest church in the world and the seat of Roman Catholicism, the current church (1635) is built on the site of the original basilica and the grave of St.

Church of St. George	StGeorgeRotundaSofia.JPG	Sofia	Bulgaria	4th century during the reign of Constantine the Great (306–337)	Bulgarian Orthodox	Built by the Romans with many later additions, St. George is the oldest building in Sofia and the only one dating from the Roman era.

Santa Maria in Trastevere	-	Rome	Italy	340	Roman Catholic	The first sanctuary was built in 221 and 227 by Pope Callixtus I and later completed by Julius I, but the oldest parts of the present church, the wall structure and floors, date from 340 AD

Cathedral of Trier	Trier Dom BW 1.JPG	Trier	Germany	340	Roman Catholic	Oldest cathedral in Germany, and still in use today. Its construction was overseen by Bishop Maximin of Trier, the construction of the grandest ensemble of ecclesiastical structures in the West outside Rome.

Basilica di San Lorenzo	-	Milan	Italy	364	Roman Catholic	When built, it was the biggest circular church building standing. It was an inspiration for the Hagia Sofia in Constantinople.

Basilica di San Simpliciano	-	Milan	Italy	c. 374	Roman Catholic	Exterior walls are original from the late 4th century. Roman basilica windows as in Cathedral of Trier are still visible on the flanks of the basilica.

Basilica of Saint-Pierre-aux-Nonnains	-	Metz	France	380	Roman Catholic	Originally built to be part of a Roman spa complex, the structure was converted into use as a church in the 7th century when it became the chapel of a Benedictine monastery.

San Nazaro in Brolo	-	Milan	Italy	c. 382	Roman Catholic	One of the earliest Latin cross buildings in western Europe; retains few ancient features.

San Paolo fuori le mura	Roma San Paolo fuori le mura BW 1.JPG	Rome	Italy	386	Roman Catholic	One of the four major Constantinian basilicas in Rome, and the only one to retain its antique character, the basilica was heavily damaged by an 1823 fire.

Santi Giovanni e Paolo	Basilique Santi Giovanni e Paolo de Rome.JPG	Rome	Italy	398	Roman Catholic	A 4th-century basilica was erected on the site of one of the most well-preserved "house churches" of early Christianity (dating from the 1st, 2nd or 3rd century), with intact fresco decoration.

Lullingstone Roman Villa	-	Eynsford, Kent	England	4th century	Early Christian	Room in a large Roman villa turned into a Christian chapel or house church, with wall-paintings surviving (Chi-Rho, largely restored, illustrated)

Basilica di Sant'Eustorgio ruins	-	Milan	Italy	c. 4th century	Roman Catholic	Some ruins remain of the apse of the ancient basilica.

Aula Palatina (Konstantinbasilika)	-	Trier	Germany	4th century	Evangelical Church in the Rhineland	A Roman palace basilica that was built by the Emperor Constantine at the beginning of the 4th century. The basilica contains the largest extant hall from antiquity.

Santi Nereo e Achilleo	-	Rome	Italy	4th century	Roman Catholic	Adjoins the Baths of Caracalla at the site where St. Peter is said to have dropped the cloth covering his wounds upon his removal from the Mamertine Prison.

Santa Pudenziana	-	Rome	Italy	4th century	Roman Catholic	Retains original and unique late Roman mosaic decoration.

San Clemente al Laterano	-	Rome	Italy	4th century	Roman Catholic	The present basilica was built just before the year 1100, but beneath it is an intact 4th-century basilica that had been converted out of the home of a Roman nobleman, part of which had in the 1st century briefly served as an early church.

Santa Costanza	-	Rome	Italy	4th century	Roman Catholic	Built under Constantine as a mausoleum for his daughter, Costanza. Retains many original mosaic decorations, and her porphyry sarcophagus is a gem of the Vatican Museum.

Santi Quattro Coronati	Santi Quattro 0511-13 cortile interno.JPG	Rome	Italy	4th century	Roman Catholic	Sanctuary is located in an isolated green area of Rome, so it retains the ambience of the area in antiquity.

Chora Church	-	Istanbul	Turkey	4th century	Eastern Orthodox	Very little remains of the 4th-century structure, but it contains impressive 13th-century mosaic decoration. It was converted to a mosque in 1501 and has been a museum since the time of Ataturk.

Hagia Irene	-	Istanbul	Turkey	4th century	Eastern Orthodox	Now a museum and concert hall (due to its excellent acoustics). Its excellent state of preservation is due to the fact that it lies inside the Ottoman palace complex (Topkapı Palace).

Sentence(s)

The Basilica Saint-Pierre-aux-Nonnains is one of the oldest church buildings.

final_sentence: The Basilica Saint-Pierre-aux-Nonnains is one of the oldest church buildings.