The Oratory located in the main square of Ramponio was built in 1724, on behalf of the Bolla family, by the architect Domenica Rapa. The Baroque style façade features a broken triangular pediment from whose sides the two side chapels protrude. The structure of the building is in plastered and painted masonry, with a stone plinth on the main façade and a stone plinth on the lateral ones. The interior, with a single nave, features stuccoes attributed to Diego Francesco Carloni and collaborators and valuable frescoes (remember the canvas depicting Saint Anne attributed to Giulio Quaglio and a fresco above the high altar portraying the master of San Giovanni, attributed to the Painter Giosuè Scotti). A valuable eighteenth-century wardrobe with wooden inlays I is preserved in the sacristy.