"Where oil once flowed as prophecy and golden mosaics crown the Queen of Heaven"
Basilica di Santa Maria in Trastevere, Rome
Rome, Lazio, Italy
On the site where legend says oil sprang from the earth foretelling the Messiah's birth, Santa Maria in Trastevere rises as possibly Rome's oldest church dedicated to the Virgin. The twelfth-century mosaics filling the apse present Mary crowned alongside Christ in fields of gold. Below, Cavallini's panels tell her life's story with a naturalism that would soon transform Western art. Evening prayer with the Community of Sant'Egidio continues the worship begun here nearly two thousand years ago.
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Quick Facts
Location
Rome, Lazio, Italy
Tradition
Site Type
Year Built
4th century
Coordinates
41.8894, 12.4700
Last Updated
Jan 31, 2026
Learn More
The site's sacred significance predates Christianity, with the fons olei legend placing prophetic recognition here in 38 BCE. Pope Callixtus I founded the first church; Pope Innocent II rebuilt the present basilica in the twelfth century with spectacular mosaics.
Origin Story
In 38 BCE, according to tradition, a spring of oil erupted from the ground at this location. The Trastevere Jewish community interpreted the phenomenon as a sign of the coming Messiah—the Anointed One, from the Hebrew word for oil. An inscription in the church preserves the tradition: 'In this, the first shrine of the Mother of God, formerly a noted tavern, a fountain of oil erupting from the ground predicted Christ's birth.' Early Christians adopted the prophecy as pointing to Christ. A Cosmati column near the altar marks where the oil reportedly flowed. This legend established the site's sacred significance before any church was built.
Key Figures
Pope Callixtus I
Pope Julius I
Pope Innocent II
Pietro Cavallini
Spiritual Lineage
The basilica has served as a cardinal titular church since the third century. The Community of Sant'Egidio, a Catholic lay movement founded by Roman students in 1968, adopted Santa Maria in Trastevere as its spiritual home, adding contemporary contemplative practice to historical significance.
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