The church is in the village of Pieve Vecchia, near the shores of Lake Idro. The term ‘ad Undas’, literally ‘on the waves’, is in fact due to its proximity to the shores of the lake. The current building is not the first church, probably destroyed during the 1200s, although some parts of the structure, such as the apse, date back to this period.
The church has a gabled structure, with a single space, with exposed external walls and, on the right side, the main entrance, since the façade is now free of openings. The exterior of the structure, in its extreme simplicity, is characterized by the presence of a small ledge in terracotta, or serpentine, which runs in the space immediately below the eaves and contains a frieze probably dating to the early 1400s. The interior is single room, with a gabled roof with wooden and brick elements, supported by masonry arches with sharp edges resting on ribs. The space is divided into spans with frescoes dating back to the XV-XVI century and two side altars. The raised presbytery is entirely delimited by the semicircular apse, dating back to the pre-existing structure of the church. The latter is characterized in the lower part by a wall texture composed of squared stones well worked and aligned to view, while in the upper part there are frescoes dating back to different eras, which decorated the entire apse.
The altar is one of a kind and was discovered under an eighteenth-century altarpiece in the mid-twentieth century. No evidence is known about the artist or the commissioning of the work, but the dating is presumably made to date back to the mid-fifteenth century. The painting that dominates the altar is structured like a polyptych and, in its central part, depicts the Virgin enthroned with Child and four saints. On the walls of the nave and on the pilasters, there are other remains of frescoes of considerable interest and historical and artistic value. The Romanesque apse, built entirely of squared and worked stone, is clearly visible on the outside. Next to the church, on the left side, there is a small vestry and the bell tower. The latter dates to the same period of construction of the church, since inside it is possible to find a wall structure composed of the stones typical of the period.


  • località -Idro (BS)