Mitreo di Santa Maria Capua Vetere

Near the amphitheatre of ancient Capua, a tower-like entrance descends to the Mithraeum of Santa Maria Capua Vetere. This underground sanctuary preserves a painted scene of Mithras slaying the bull beneath a starry vault, among the rare surviving decorations of Roman Mithraic worship.

Why it matters

Mithraic sanctuaries were rooms for communal rites, and few retain their painted decoration. The sanctuary at ancient Capua is dated to the late first century AD and is considered the oldest mithraeum in the western Roman world. Its paintings and reliefs preserve evidence of the cult of Mithras in Campania. The cult reached Italy through the ports and commercial towns of the region; its spread is associated with enslaved people and merchants arriving from the Aegean island of Delos at Puteoli, modern Pozzuoli.

What to notice

The approach descends through a small, turret-shaped entrance building into the buried chambers. The main cult room lies beneath a barrel vault painted as a night sky. Its central image is the tauroctony: Mithras slaying the bull, a defining scene in the cult’s imagery. A marble relief of Cupid and Psyche provides a sculptural counterpoint to the frescoes. Side benches mark the space where initiates gathered for ritual meals.

Context and history

The sanctuary belongs to the late first century AD, when Mithraism was spreading through the ports and commercial towns of Campania. It was discovered in 1922 and opened to the public in 1937. The wall paintings are an exceptional survival among Mithraic sanctuaries. The modern entrance turret was designed to evoke the cave-like setting associated with ancient Mithraic worship.