San Pietro Martire, Vigevano, Gothic church in Vigevano, Italy

San Pietro Martire is a Lombard Gothic church in Vigevano with an imperfect Latin cross plan, polygonal choir and octagonal-based bell tower. Its facade is divided into three sections matching the naves, topped by three pinnacles, and has a Gothic ringed portal framed in terracotta with a bas-relief added in 1969.

Construction began in 1363 under architect Bartolino da Novara, and the Dominicans acquired the building in 1446 through the patronage of Filippo Maria Visconti. This connection with one of the region's most influential families shaped the site's importance for centuries.

The church is jointly dedicated to Saints Christopher and Peter Martyr, and the chapels lining the nave are each assigned to a different saint, from Saint Dominic to the Virgin of the Mercies. The altarpieces in these chapels are by unknown artists. In the crypt, the body of Blessed Matteo Carreri, patron of Vigevano, who died in the adjoining convent in 1470, is kept.

The church stands in Vigevano's historic centre, a short walk from Piazza Ducale. The side entrance at the head of the transept is reached by a staircase on the left flank; until the late 19th century an embankment linked the square in front to that side door. The crypt, holding the body of Blessed Matteo Carreri, is entered by two openings flanking the raised presbytery.

In 1645, during the French siege of the Rocca Nuova, the bell tower was not fully destroyed: it was cut in half vertically and put back together a few years later. The octagonal-based tower still stands on the Lombard Gothic church.