The last chapel in the left aisle was dedicated and decorated in 1660 by the patronage of Princess Camilla Orsini Borghese. The paintings are by artists of the Roman School. The altarpiece, an oil on canvas painting by Giacinto Brandi, represents St. John drawing a child up from a well, with the help of his own belt, after ordering its water to come up. The whole chapel is paneled with precious red-veined marbles.