Byzantine Art

Basilica of San Vitale: History, Plan and Mosaics

San Vitale in Ravenna is an eight-sided church begun around 526 and consecrated in 547, with mosaics of Justinian and Theodora.

The apse and presbytery of San Vitale with gold and green mosaics above three windows
Ravenna, San Vitale, presbytery and apse with mosaics, consecrated 547. Glass mosaic, marble. Ravenna, Italy. The richest surviving mosaic ensemble of Justinian's age.Photo: José Luiz, CC BY-SA 4.0, via Wikimedia Commons
The short answer

San Vitale is an eight-sided church in Ravenna, begun around 526 under Bishop Ecclesius and consecrated in 547 by Bishop Maximian. Its central plan follows models from Constantinople. Its presbytery is covered with mosaics, including the famous panels of the emperor Justinian and the empress Theodora with their courts.

Built across two regimes

Work on San Vitale began around 526, when Ravenna was still ruled by the Ostrogoths, under Bishop Ecclesius. It was paid for by a wealthy banker, Julianus Argentarius, who according to the ninth-century chronicler Agnellus spent 26,000 gold coins on it. By the time the church was consecrated in 547 by Bishop Maximian, Justinian’s armies had taken the city, and the decoration became a celebration of the new imperial order.

The brick exterior of San Vitale with a doorway and an octagonal body
Ravenna, San Vitale, exterior, c. 526-547. Brick. Ravenna, Italy. Plain brick walls rise in an octagonal drum.Photo: Commonists, CC BY-SA 4.0, via Wikimedia Commons

An octagon inside an octagon

San Vitale is not a long basilica but a centrally planned church. A tall central octagon, crowned by a dome, is surrounded by a lower octagonal walkway, the ambulatory, with a gallery above it. Seven of the eight sides open into curved niches with columns; the eighth leads to the presbytery and the apse. The plan is close to that of the church of Saints Sergius and Bacchus in Constantinople, built in the same years.

Black and white plan of San Vitale with a central octagon, an apse and a long angled porch on a glass slide
Plan of San Vitale, Ravenna, with the central octagon, the ambulatory, the apse with its two side chapels and the angled entrance porch. Photograph of a glass slide, Université de Louvain. A building organised around a centre.Photo: Unknown author (Université de Louvain glass slide, public domain), Public domain, via Wikimedia Commons
A line drawing of a section through San Vitale
Longitudinal section of San Vitale, from a study of the building’s vaults. Drawing. The octagon rises above the aisles and galleries.Photo: August Essenwein, Public domain, via Wikimedia Commons
An illustration of the presbytery and octagon of San Vitale with an altar and visitors
Ravenna, San Vitale, view of the presbytery and the octagon, c. 526-547. Illustration from Thomas Graham Jackson, Byzantine and Romanesque Architecture, 1913. Space opening outwards on every side.Photo: Internet Archive Book Images, No restrictions, via Wikimedia Commons
A mosaic vault with garlands and a central medallion with a lamb
Ravenna, San Vitale, mosaic vault of the presbytery with the Lamb of God in a wreath, c. 547. Glass mosaic. Ravenna, Italy. Garlands of fruit and leaves around the central medallion.Photo: Petar Milošević, CC BY-SA 4.0, via Wikimedia Commons

The dome is light: its builders used hollow clay tubes fitted into each other, which reduced the weight on the walls. The marble capitals, carved in deep openwork like baskets and topped by blocks carved with crosses, were probably made in workshops near Constantinople and shipped to Ravenna.

A carved white marble capital with a monogram on the impost block
Ravenna, San Vitale, basket capital with impost block, 6th century. Marble, imported from the eastern Mediterranean. Ravenna, Italy. The carving is cut so deeply that the surface looks like lace.Photo: José Luiz, CC BY-SA 4.0, via Wikimedia Commons

The mosaics of the presbytery

The mosaics are concentrated around the altar. In the apse, a youthful Christ sits on a blue globe, offering a crown to Saint Vitalis, while Bishop Ecclesius, on the other side, presents a model of the church. On the side walls, biblical scenes, the offerings of Abel and Melchizedek and the hospitality of Abraham, point to the sacrifice celebrated at the altar below. Moses, prophets and evangelists fill the spaces between.

A mosaic angel beside Bishop Ecclesius holding a model of a church
Ravenna, San Vitale, apse mosaic: Christ on a globe between angels, Saint Vitalis and Bishop Ecclesius with a model of the church, c. 547. Glass mosaic. Ravenna, Italy. The founder bishop offers his building to Christ.Photo: bradhostetler, CC BY-SA 2.0, via Wikimedia Commons
A mosaic lunette showing Abel and Melchizedek making offerings at an altar
Ravenna, San Vitale, lunette with the offerings of Abel and Melchizedek, c. 547. Glass mosaic. Ravenna, Italy. Two Old Testament offerings framing the altar.Photo: Username.Ruge, CC BY-SA 4.0, via Wikimedia Commons

Lower down on either side of the apse are the two most famous images: the emperor Justinian with Bishop Maximian, clergy, courtiers and guards, and opposite him the empress Theodora with her ladies. They show the rulers bringing gifts to the church, though neither ever came to Ravenna. What the Justinian mosaic shows, and who its figures are, has a page of its own.

A model for Charlemagne

About 250 years later, Charlemagne, who had visited Ravenna, built his palace chapel at Aachen as an octagon with an ambulatory and gallery, clearly inspired by San Vitale. Through Aachen, the plan reached medieval Germany. San Vitale has been part of the UNESCO World Heritage Site of the early Christian monuments of Ravenna since 1996, and it remains one of the few places where early Byzantine art survives in its original setting.

The octagon of the Palatine Chapel in Aachen with arches in two storeys
Aachen, Palatine Chapel, interior of the octagon, c. 790-805. Stone and marble. Aachen, Germany. Charlemagne’s chapel took San Vitale as its model.Photo: Traveler100, CC BY-SA 3.0, via Wikimedia Commons

Where to see it

San Vitale stands in the historic centre of Ravenna, in the same enclosure as the Mausoleum of Galla Placidia and the National Museum.

Sources

  • Opera di Religione della Diocesi di Ravenna, “Basilica di San Vitale”.
  • UNESCO World Heritage Centre, “Early Christian Monuments of Ravenna”.
  • Agnellus of Ravenna, Liber Pontificalis Ecclesiae Ravennatis (9th century).
  • D. M. Deliyannis, Ravenna in Late Antiquity (Cambridge, 2010).

Quick facts

Place
Ravenna, Emilia-Romagna, Italy
Monument
Basilica of San Vitale
Date
Begun c. 526; consecrated 547
Patron
Bishop Ecclesius; financed by Julianus Argentarius; consecrated by Bishop Maximian
Material
Brick; marble columns and capitals; glass mosaic
Dimensions
Central octagon with dome, ambulatory and gallery
Status today
Church and museum site; part of the UNESCO Early Christian Monuments of Ravenna since 1996