Lateran, Religious building complex in Monti district, Rome, Italy.

The Lateran is a religious complex in the Monti district of eastern Rome, consisting of several interconnected buildings: a palace, a basilica, a baptistry, and a university. The different structures cluster around a central square and offer access to inner courtyards and chapels used for worship and pilgrimage visits.

Constantine the Great transferred the property to the Bishop of Rome in the fourth century after it had belonged to the Lateranus family. Over the following centuries, the site hosted five major church councils between 1123 and 1517 that shaped key teachings for the Catholic Church.

The name Lateran comes from the Plautii Laterani, the Roman family who once owned the land. The basilica was first dedicated to Christ the Redeemer and later also placed under the patronage of Saint John the Baptist, hence San Giovanni. Until the 19th century, popes were crowned here, and the church still holds the title Omnium urbis et orbis ecclesiarum mater et caput.

The complex opens daily through the main entrance at Piazza San Giovanni, with mornings offering quieter conditions. Guided tours run in several languages, but walking around on your own lets you explore the grounds at your own pace.

The name Lateran comes from the Plautii Laterani, the Roman family that owned the land; Nero confiscated it in 65 after Plautius Lateranus joined the Pisonian conspiracy. In the Middle Ages the equestrian statue of Marcus Aurelius stood on the square and was taken for Constantine, which saved it from destruction. Pope John XIII had a rebellious city prefect hanged by the hair from that statue.