Domnius

Saint Domnius — Sveti Duje in Croatian — is the patron saint of Split and gives his name to the city's cathedral, one of the oldest buildings anywhere still in use as a cathedral. Domnius was a 3rd-century bishop of nearby Salona, born in Antioch in what is now Turkey, who was beheaded in 304 AD during Emperor Diocletian's persecution of Christians.

The Martyr and the Emperor

Salona, a few kilometres inland from modern Split, was the capital of the Roman province of Dalmatia and one of the largest cities on the eastern Adriatic. Domnius led its Christian community at the worst possible moment. Diocletian, who had himself been born in the province, launched the empire's last and most systematic campaign against Christians from 303 AD, and tradition records that Domnius was executed alongside seven companions the following year. The detail that makes the story stick is the geography of it: the bishop was killed on the emperor's orders a short walk from the retirement palace that same emperor was then finishing on the coast.

From Imperial Mausoleum to Christian Cathedral

The building itself began as something quite different: it was built in 305 AD as the octagonal Mausoleum of Diocletian, inside the walls of Diocletian's Palace, meant to house the remains of the very emperor who had ordered Domnius's execution. The palace went up between roughly 295 and 305 AD as an irregular rectangle measuring about 215 metres along its eastern wall, built from white limestone quarried on the island of Brač, with granite columns and twelve sphinxes shipped in from Egypt, of which only three survive today. The mausoleum stood on the east side of the Peristyle, ringed by 24 marble columns with Corinthian capitals and lined inside with eight columns of red granite. When Avar and Slavic forces destroyed Salona in the 7th century, its surviving population took refuge inside the abandoned palace and converted the mausoleum into a Christian church, consecrated around the turn of that century — the persecutor's tomb became the shrine of the man he had killed. Diocletian's own sarcophagus was broken up during the conversion, though two carved medallions in the interior frieze, usually read as portraits of the emperor and his wife Prisca, were left in place and are still there.

The Relics and the Bell Tower

The relics of Domnius and of the fellow martyr Saint Anastasius of Aquileia were later moved here from Salona's ruined basilicas. Since 1770, Domnius's relics have rested in an altar carved by the Venetian sculptor Giovanni Maria Morlaiter. The cathedral's freestanding bell tower, begun in the 13th century and only finished by the mid-16th, rises 57 meters above the old town and was heavily restored between 1890 and 1908. That rebuilding removed a good deal of the original Romanesque carving, so the tower dominating Split's skyline today is in large part a careful reconstruction; the climb up its open stone stairs is still the best vantage point over the palace roofs and the harbour.

Inside the Cathedral

The main door is a pair of walnut panels carved by the Split craftsman Andrija Buvina in 1214, with 28 scenes from the life of Christ, fourteen on each wing, running from the Annunciation to the Resurrection. Inside, a hexagonal Romanesque pulpit of green porphyry dates from the 13th century, as do the carved wooden choir stalls. Two late-Gothic altars fill the side niches: Bonino da Milano's canopy over the altar of Saint Domnius, erected in 1427 and frescoed two years later, and the altar of Saint Anastasius completed by Juraj Dalmatinac in 1448, whose Flagellation relief ranks among the finest Dalmatian sculpture anywhere. The main altar was built between 1685 and 1689, and a choir was added at the eastern end in the 17th century, giving the round Roman interior the long axis a working cathedral needs. The treasury holds chalices and vestments from the 13th to the 19th century, a 13th-century painted Madonna and a Gospel book dated to the 6th century.

Sudamja and a Living World Heritage Site

Domnius is honoured every 7 May, a date that doubles as the Day of the City of Split and is known locally as Sudamja. A procession carries the saint's silver reliquary bust out of the cathedral and through the streets, and the religious ceremony sits inside a week of concerts, markets, regattas and fairs along the Riva. Together with the rest of Diocletian's Palace, the Cathedral of Saint Domnius is part of Split's UNESCO World Heritage listing, inscribed in 1979, and its bell tower and treasury make it a popular stop for gulet charter guests exploring Split before they head out to the islands. What separates the site from most ancient monuments is that roughly 3,000 people still live inside the palace walls, in apartments and shops built into Roman masonry, so the cathedral opens onto a working neighbourhood rather than an archaeological park.