The patroness of Volvera is the Assumption of the Virgin Mary, celebrated on 15 August: the patronal church dedicated to her was built over twenty years, from 1598 to 1618, at the wish of the archbishop of Turin Carlo Broglia, after the old parish church, today's church of San Giovanni Battista in the cemetery dating from the 13th century, had become too small for the expanding town. Its Baroque brick bell tower, with a copper dome, is notable for the harmony of its Juvarra-style design, and inside a painted work attributed to C. Sacchi, of the school of Guglielmo Caccia known as «il Moncalvo», is preserved.
Volvera was the site of numerous troop clashes, including those culminating in the battle of Marsaglia on 4 October 1693: after the battle the town was ruined, burned and plundered, with damage that remained visible for a long time, and not even the parish church was spared. More than twelve thousand fallen soldiers remained unburied for weeks in the surrounding countryside, so much so that the land remained unfit for cultivation for years; today the battle is commemorated every two years with a historical reenactment in the town's countryside.
