Tuesday, June 23, 2026

San Giovanni in Laterano: The Mother of All Churches

Basilica of San Giovanni in Laterano, Rome

Most visitors to Rome head straight for St Peter’s, and understandably so. Yet across the city, in a quieter corner away from the crowds of the Vatican, stands a church that is in fact the highest-ranking in the entire Catholic world. The Basilica of San Giovanni in Laterano — the Archbasilica of St John Lateran — is the cathedral of Rome and the official seat of the Pope in his role as Bishop of Rome. An inscription on its facade proclaims it the “mother and head of all churches in the city and the world.”

It is a title that surprises many. While St Peter’s is the most famous and the largest, it is the Lateran that holds the senior rank. For more than a thousand years before the popes moved to the Vatican, this was the very centre of the Western Church, and it remains so in dignity and law to this day.

The Oldest Church in the West

The origins of the Lateran reach back to the dawn of legal Christianity. In the early fourth century, after the Emperor Constantine granted Christians the freedom to worship, he gave land on the Lateran hill for the building of a great church. This makes San Giovanni in Laterano the oldest public church in Rome and, by tradition, the oldest in the Western world — a place where Christians have worshipped openly since the religion first emerged from the shadows of persecution.

For roughly a thousand years, the adjoining Lateran Palace served as the principal residence of the popes, and the basilica was the focus of the Church’s life in Rome. Numerous important councils were held here, and generations of pilgrims came to venerate its relics and pray within its ancient walls. Only in the fourteenth century, after a long period of upheaval, did the papal residence shift permanently to the Vatican.

A Basilica Remade Through the Centuries

The Lateran has endured fires, earthquakes and sackings, and has been rebuilt and transformed many times. The grand interior visitors see today owes much to a magnificent Baroque remodelling, which gave the long nave its soaring rhythm and lined it with colossal statues of the apostles, each set dramatically into the piers. The result is one of the most impressive church interiors in Rome, rich in marble, gilding and sculpture.

Interior of the Archbasilica of St John Lateran

The imposing main facade, crowned with enormous statues of Christ and the saints visible from far across the rooftops, presents a commanding sight, while the ancient bronze doors and the tranquil medieval cloister preserve echoes of the basilica’s far older past. Above the high altar, a Gothic canopy is said to enshrine relics of great significance to the faithful.

The Holy Stairs and the Lateran Complex

The Lateran is not a single building but a sacred precinct. Close by stands the Scala Sancta, the Holy Stairs, which tradition holds were brought to Rome from Jerusalem and which pilgrims climb on their knees in prayer. Nearby too is the Lateran Baptistery, an ancient octagonal structure that served as a model for baptisteries across Christendom for centuries.

Together these make the Lateran one of the most historically layered religious sites in Rome — a place where the very beginnings of public Christianity, the long medieval power of the papacy, and the splendour of Baroque Rome all meet. For travellers willing to step beyond the obvious, it offers a profound and far less crowded encounter with the heart of Catholic history.

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