When the land was purchased by the Agostiniani Scalzi in 1615, they were obliged to think up a name for the church that was to be built. It is said the name given came from a comment made by one of the parish priests who, fed up with the many useless meetings, blurted out: "Jesus and Mary, let's give it a name!" The sober exterior has a single portal crowned by a large rectangular window and contrasts greatly with the richness of the Baroque interior. The church has a single nave and three chapels on each side, among which the tombs of the Bolognetti family lie. Note that of Monsignor Georgio Bolognetti, who was one of the church's main sponsors. The vault is covered with canvas paintings by Giacinto Brandi and his followers, and the organ dates from the mid-18th Century.
- Nearest Train: Flaminio Piazza del Popolo