Santa Maria in Trastevere: The Sanctuary of the Fons Olei and the Ancient Icons

In the heart of Rome’s most authentic district stands one of the oldest and most venerated churches in Christendom: the Basilica of Santa Maria in Trastevere. This sanctuary is not only a masterpiece of medieval art but a place steeped in history, miracles, and a Marian devotion that has its roots in the very first centuries of the Church. Its foundation is linked to a miraculous event that anticipated the coming of Christ, and within its walls, it safeguards artistic and spiritual treasures of inestimable value, a destination for pilgrimage for the faithful and enthusiasts of sacred art from all over the world.

History and Origins: The Miracle of the “Fons Olei”

The history of this sacred place is shrouded in an aura of mystery and wonder. An ancient tradition, considered reliable throughout the Middle Ages, identifies the site of the basilica with that of the Taberna Meritoria, an inn for retired veteran soldiers. Here, according to the Chronicle of Eusebius, in 38 BC, an extraordinary event occurred: a river of pure oil gushed from the ground for an entire day. This miracle, known as the “Fons Olei” (Fountain of Oil), was interpreted as an announcement of the coming of Christ, the Anointed One of the Lord.

Even today, inside the sanctuary, to the right of the staircase leading to the ciborium, the exact spot – coinciding with a step – where the miracle occurred is indicated. As a perpetual memory, the basilica’s coat of arms bears the inscription “Fons Olei.” Although archaeologists cannot confirm with certainty the coincidence of the two sites, the tradition is deeply rooted. The Liber Pontificalis attributes the foundation of the church to Pope Saint Callixtus I, between 217 and 222 AD, making it one of the first Christian places of worship officially dedicated to the Virgin Mary.

Treasures of Art and Devotion: The Miraculous Icons

The heart of devotion in the basilica beats for two Marian images of extraordinary importance.

The Madonna della Clemenza

This is an ancient icon painted in the first half of the 8th century on gessoed canvas and wooden panels, perhaps to reproduce an image already venerated in the 5th-6th centuries. It depicts Mary as Queen, seated on a throne with the Child in her arms, who holds the orb of the world. Surrounded by two angels, the Madonna holds a processional cross in her right hand, while a pontiff kneels at her feet. The icon, transferred to its current location on March 17, 1593, is located in the Altemps Chapel (to the left of the apse), built by Cardinal Marco Sittico Altemps. In 1709, to protect and honor it, the image was covered with a precious silver plate. Great saints like Philip Neri, Charles Borromeo, and Saint Frances of Rome (who had numerous visions here) were its fervent devotees.

The Madonna della Cupa

Another miraculous image enriches the basilica. In 1624, a venerated effigy of the Madonna and Child was transported to the Cecchini Chapel (on the right), coming from the door of a vineyard on the road called “Cupa,” on the slopes of the Janiculum. Already an object of great popular devotion in its original location, the work dates to the mid-16th century, and some attribute it to the workshop of Perin del Vaga.

A Sanctuary of Martyrs and Relics

The basilica is also an important repository of memories of the early Christians. In the 9th century, a crypt was excavated to house the relics of numerous martyrs, including:

• **Pope Cornelius**, transferred from the Cemetery of Callixtus.

• **Saint Callixtus and Saint Calepodius**, from the Via Aurelia.

• **Quirinus and Julius**.

The relics of other saints are also venerated, such as Firminus, Dalmatius, Victor, and, in a marble urn under an altar, those of the martyrs Florentinus, Corona, Sabinus, and Alexander. Among the most unique relics are:

• A stone kept in the sacristy that is said to have collected a drop of the blood of **Saint Dorothy** during her martyrdom.

• A stone transported in 1727 from the church of Santa Dorotea, on which the footprints of two angels who assisted at the crucifixion of Saint Peter are said to be imprinted.

• A fragment of the **True Cross**, stolen in 1498 and miraculously found in a vineyard in Trastevere.

Architecture and Symbols of a Millennial Faith

The architecture of the basilica is a palimpsest of styles, with its majestic medieval façade adorned by the 13th-century mosaic and the three-nave interior supported by reused ancient columns. The raised presbytery overlooks the crypt, creating a suggestive path between the light of the church and the collected penumbra of the martyrs. The rich decorative apparatus, from the apse mosaics to the coffered ceilings, tells centuries of faith and patronage.

Traditions and Festivities

A particular tradition links the sanctuary to January 1st. Indeed, since the 4th century, the feast of the Circumcision of Jesus was solemnly celebrated here. On this occasion, in a neighborhood historically characterized by a strong Jewish presence (as evidenced by ancient synagogue inscriptions), the figure of Mary was also exalted, invoked as the mother of the “divine circumcised one from the tribe of Judah.” This celebration underscores the deep bond between Jewish roots and Christian faith.

How to Visit and Experience the Sanctuary

A visit to Santa Maria in Trastevere is an experience that unites spirituality, art, and history.

• **Look for the Sign of the Miracle**: Don’t miss the chance to look for, near the ciborium staircase, the marked spot where the miraculous oil gushed forth. It is a direct contact with a living legend.

• **A Journey Through the Chapels**: Dedicate time to the contemplation of the two Marian icons. Compare the solemn royalty of the *Madonna della Clemenza* in the Altemps Chapel with the more intimate devotion emanating from the *Madonna della Cupa*.

• **Explore the Surroundings**: After the **visit**, lose yourself in the alleys of Trastevere. The district offers a sensory adventure among historic shops, typical taverns, and the lively Piazza di Santa Maria, the heart of Roman nightlife. A climb up the nearby Janiculum will then gift you one of the most beautiful views of Rome.

The basilica, under the direct jurisdiction of the Bishop of Rome, is a vibrant place of worship. Inquire about mass times to join the community’s prayer and fully experience its spirit.

Santa Maria in Trastevere is not just a must-see for those who love sacred art and history. It is a place where time seems to have stood still, where every stone, every mosaic, every sacred image tells a story of faith that for two thousand years has traversed the centuries, inviting pilgrims and visitors to pause, to look, and to marvel.