Trieste Cathedral

Stand still for a moment at the top of the hill. If the bora is blowing, you will feel it before you hear it. It is the cold northeast wind that pours down from the Karst plateau and pushes hard against your coat. Below you, the city drops toward the Adriatic in layers of roofs and grey stone. In front of you is a broad, plain facade with one great stone flower cut into its centre. This is the Cathedral of San Giusto, the spiritual heart of Trieste.

The hill itself is older than the church. Long before there was a cathedral, this summit held the centre of Roman Tergeste, the town that later became Trieste. Romans built here because the height gave them a view of the sea and a defensible position over the harbour. Fragments of that Roman town are still close by. Look around the open ground near the cathedral and you will find ruins of the old forum and a civic basilica, low walls and column bases set into the grass.

The name of the cathedral belongs to Saint Justus, called Giusto in Italian. Christian tradition says he was a citizen of the town who was martyred in the early fourth century, during the persecutions under the emperor Diocletian. According to the story, he was weighted down and thrown into the sea. His body later washed ashore, and local Christians buried him. Over the centuries he became the patron saint of the city, and his name is now attached to the hill, the church and the castle beside it.

Here is the first thing most visitors miss. This cathedral is really two churches joined into one. In the Middle Ages, two separate buildings stood side by side on this spot. One was a basilica dedicated to the Virgin Mary. The other was a smaller church honouring Saint Justus. In the fourteenth century, builders knocked through the walls between them and united them under one roof. That is why the interior feels unusually wide, and why the floor plan does not follow the usual simple pattern.

Now look again at the facade. It is modest and flat, almost severe, built of rough stone. The rose window is the one grand gesture. It is a Gothic design, meaning the pointed, lace-like style of late medieval Europe, and it dates from the fourteenth century. Its stone tracery forms a wheel of delicate openings. When the afternoon light is behind you, the carving casts fine shadows across the stone and the whole window seems to stand out from the wall.

The second surprise is right beside the main door. Look closely at the tall stone panels that frame the entrance. They were not carved for a church at all. They come from a Roman funerary monument, a tomb marker that once honoured a local family. You can still make out carved portrait busts set into the stone. Medieval builders reused good Roman stone wherever they found it. So every person who walks into this Christian cathedral passes between the faces of people who lived and died here in pagan Rome.

The bell tower holds a similar secret. It is a solid, square structure attached to the front of the church. Walk around its base and look for the Roman columns embedded in its walls. They are remains of an ancient Roman building that stood on this summit, and the medieval tower was raised around them rather than on top of cleared ground. High on the tower, a statue of Saint Justus looks out over the city he protects.

Step inside, and let your eyes adjust. The interior is cool and dim, divided into several aisles by rows of columns. Because the church grew from two older buildings, the columns and capitals do not all match. Some are plain, some carved, some clearly salvaged from earlier structures. This mixture is not a mistake. It shows how the cathedral grew slowly, piece by piece, as each generation reused and added to what came before.

Walk toward the far end and look up into the side apses, the curved recesses behind the altars. Here you will find the cathedral's great treasures — medieval mosaics made from thousands of small glass and stone tiles. Their style is Byzantine, the art of the eastern Roman Empire centred on Constantinople, with gold backgrounds and calm, formal figures. In one apse, the Virgin Mary sits enthroned between two archangels. In another, Christ stands between Saint Justus and Saint Servulus, another local martyr. The gold catches every candle and every shift in daylight.

There is also a legend you will hear from almost anyone in Trieste. It concerns Saint Sergius, a Roman soldier who, according to the tale, served here before he was martyred far away in Syria. Locals say that on the day of his death, his halberd, a long spear with an axe blade, fell from the sky into the town. That halberd became the symbol of Trieste. You will see it on flags, buildings and football shirts across the city. A relic associated with the story is kept by the cathedral.

The cathedral also has a quieter, more unexpected connection to Spanish history. In the nineteenth century, members of the Carlist line, a branch of the Spanish royal family who claimed the throne and lost, lived in exile in Trieste. Several of them were buried here, in a chapel inside the cathedral. It is a strange thought. In this Adriatic port, far from Madrid, lie men who once believed they should rule Spain.

Trieste has belonged to many powers. It was Roman, then a medieval commune, then for centuries the main seaport of the Habsburg empire, ruled from Vienna. In the twentieth century it became Italian. Through all of those changes, this hill and this cathedral stayed at the centre of civic life. Emperors, bishops and ordinary families came up these slopes for coronations, funerals, festivals and simple Sunday Mass. The building carries traces of every one of those eras.

When you leave, pause again on the open square outside. To one side stands the Castle of San Giusto, with its heavy walls and wide views over the gulf. Below, the streets wind down toward the old Roman theatre and the waterfront. Listen for the bells, the gulls and the wind. Then look back once at the rose window, and at the Roman faces beside the door. They have watched this hilltop for a very long time — and now, for a moment, they are watching you too.