After the house of the Soderini, along Borgo Nuovo's north side, lay a small arch, the "Arco della Purità" ("Purity's arch"), leading to a short lane hosting the little church devoted to the Virgin Mary. Santa Maria della Purità was erected here inside the ruins of a house destroyed during the sack of Rome of 1527 to remember a miracle which happened here in 1530; after praying a fresco with the Virgin Mary which had survived on a wall of the ruined house, a woman prayed the Virgin to heal her hand: after the healing, more and more people came here to pray the Virgin and a small church was erected.