Sant'Eufemia Basilica

Basilica of Sant'Eufemia (St. Euphemia): The Romanesque Soul of Isola Comacina

The Basilica of Sant'Eufemia (St. Euphemia) is the most significant monument on Isola Comacina. Brought to light at the beginning of the 20th century through the meticulous work of Monneret, it stands as a testament to the island's former glory. Like all the island’s structures, the basilica was devastated during the ten-year war when the Comaschi conquered and razed the stronghold. Today, thanks to extensive excavations, visitors can clearly see the floor plan, the remains of the pillars, and portions of the exterior walls, allowing for a reliable reconstruction of its original Romanesque splendor. The layout follows a classic basilica design with three naves and three apses, notably without a transept.

Ugo Monneret's research on Isola Comacina

One of the church's most unique features is its octagonal pillars. This archaic style is quite rare in Lombardy, finding closer parallels in certain 11th-century buildings in Piedmont. Inside, a series of stone blocks suggests the space may have also served as an important community meeting place. Beneath the central presbytery lies the crypt, the best-preserved part of the complex. It features cross vaults supported by eight reconstructed columns and wall pilasters. Originally, the crypt was accessed through two distinct entrances, each featuring a large arch divided by a central column—a design similar to a mullioned window where one opening served as a door and the other as a window.

While the exterior was largely destroyed, we know a bell tower once stood on the right side of the facade, much like the one at San Giovanni in Bellagio. The facade itself was preceded by a narthex (an enclosed porch), of which structural traces remain. Historical evidence indicates a single main entrance in the facade, with two additional doors located along the northern side of the building.