A concentrate of art and spirituality

The Abbey of Grottaferrata packs a thousand years of art into one compact site: Byzantine mosaics, Baroque frescoes, Renaissance walls and a museum. Here's what not to miss when you visit this Greek-Catholic monastery in the Castelli Romani (the Castelli Romani hill towns).

The church of Santa Maria

The heart of the abbey is the medieval church of Santa Maria. Above the entrance portal you'll find a precious Byzantine mosaic (the Deesis, with Christ flanked by the Virgin and the Baptist) and an ancient holy water font. Inside, the atmosphere is pure Eastern church: the iconostasis, the icons and a venerated image of the Madonna of Grottaferrata.

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Domenichino's frescoes

The abbey's artistic masterpiece is the chapel of St Nilus (also known as the chapel of the Holy Founders), decorated in the early 1600s by the great painter Domenichino with a cycle of frescoes dedicated to the lives of St Nilus and St Bartholomew. They rank among the painter's most celebrated works, a triumph of color and storytelling that alone is worth the trip.

The fortified walls

The abbey is a rare example of a monastery-fortress: in the late 1400s Cardinal Giuliano della Rovere (the future Pope Julius II) had it ringed with walls, towers and a moat, to a design attributed to the Sangallo circle. The defensive look, with its bridge and forecourt, gives it a one-of-a-kind appeal, half place of faith and half castle.

The abbey museum

The museum gathers archaeological and medieval finds, sculptures, fragments and traces of the long history of the monastery and its surroundings. It's a valuable complement to the visit, helping you grasp the abbey's role through the centuries. For the historical context, see the history of the Abbey of Grottaferrata.

How to plan your visit

  1. Admire the mosaic on the portal and the holy water font
  2. Step into the church of Santa Maria (iconostasis, icons)
  3. Visit the chapel of St Nilus with Domenichino's frescoes
  4. Walk the walls and the fortified forecourt
  5. Wrap up at the abbey museum

Frequently asked questions

What is the masterpiece of the Abbey of Grottaferrata? Domenichino's frescoes in the chapel of St Nilus, dedicated to the lives of the holy founders: among the painter's most celebrated works.

What's inside the church of Santa Maria? A Byzantine mosaic on the portal, the iconostasis, the icons and the venerated image of the Madonna of Grottaferrata, all in the atmosphere of an Eastern church.

Why does the abbey have walls? Because in the late 1400s Cardinal Giuliano della Rovere turned it into a fortress, with walls, towers and a moat.

What can you see in the museum? Archaeological and medieval finds, sculptures and traces of the thousand-year history of the monastery and its surroundings.

How much time do you need for the visit? About an hour to an hour and a half for the church, the chapel, the walls and the museum.

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Article #654 · Category: Day Trips · Updated: May 2026