Founded in the 9th century on a slope on the right bank of the Vomano river valley, the church was part of a Benedictine monastery dependent on that of San Clemente in Casauria and commissioned by Ermengarda, daughter of Emperor Ludovic II. Partly the result of the restorations of 1926, the building is still that of the 12th century reconstruction.
The facade in white stone blocks and bricks houses a beautiful architraved portal with a semicircular arch always in carved stone with spirals on classical models and dated 1108. The interior has three naves ending in apses. The central one is dominated by the ciborium, perhaps the oldest in Abruzzo, with very dense stucco decoration, from the mid-12th century and signed by master Roberto di Ruggero. Below it is an altar mensa whose antepedium is a precious mosaic of marbles and coccio pesto.
