Chiesa di San Michele in Insula, Trino

Outside the town of Trino, on a site that still retains the ancient name of Insula as it was surrounded by two branches of the Po, stands the church of San Michele in Insula.

The origins of the parish date back to early medieval times: the earliest written records are from the 10th-11th centuries, but it can be reasonably assumed that it was built on an earlier sacred building, since the site had been inhabited since Roman times, and was protected by a wall.

Despite multiple subsequent interventions, the church retains its sober Romanesque style assumed in the 12th century. It likely lost importance when the settlement was concentrated in the area where the 13th-century parish church of San Bartolomeo stands. That is not to say that the ancient parish church, dear to popular devotion, was entirely abandoned.

The facade with the prònao in front of the front door represents an 18th-century makeover.

The interior has three naves, with the central one raised above the side naves.

Fragments of 12th-century frescoes of great historical and artistic significance have been unearthed in the presbytery: a Crucifixion and Scenes from the Life of St. Michael are visible; in them the artist shows himself up-to-date with the Romanesque painting that was emerging in Lombardy.