The church of San Trovaso (Venetian contraction to indicate the saints Gervasio and Protasio) is a religious building in the city of Venice located in the Dorsoduro district, in the homonymous field.
As Giuseppe Tassini tells us, the church was built in the early days after the foundation of Venice, and immediately became a parish church. It was rebuilt in 1028 by the Barbarigo and Caravella families. From its foundation it was subject to the authority of the patriarchs of Grado and the bishops of Olivolo. Due to various controversies, a compromise was reached in 1041: both prelates would elect and command the vicar of San Trovaso. This is an important testimony to the bad relations that existed in the Middle Ages between the clergy of Grado and the Venetian clergy. In 1105 the church was renovated. It collapsed in 1583 and from 1584 was rebuilt in seven years. It was consecrated in 1657. It was renovated in the 19th century when it was able to have higher income from alms thanks to the growth of the parish district, due to the suppression of nearby churches.
A singular feature of the building is the double façade, one facing Campo San Trovaso and the other facing the river of the same name. According to tradition, the double entrance was used to keep the rival factions of Castellani and Nicolotti separate, when both went to church on the occasion of the feast of the saints, in order to avoid the outbreak of brawls.
The church has a single nave and a barrel vault, with a Latin cross plan, various side chapels and a large presbytery. Among the works in the church we find a Last Supper by Tintoretto dating back to 1556-1556.