Fountain in Piazza Santa Maria in Trastevere mentioned in documents dating to the second half of the 15th century. A drawing of the fountain appears on the map of Rome made by Pietro del Massaio in 1471, along with a description of the legend of the fountain's origin. According to the legend, which appears in the "Chronicle" of Eusebius, translated and finished by Saint Jerome in the fifth century, on the night of the birth of Christ a fountain of oil appeared miraculously in front of the church, which as a result was given the name "Santa Maria in fontibus." The original fountain was supplied with water
Palazzo Barberini awarded to Bernini, a young prodigy then better known as a sculptor. Borromini stayed on regardless and the two architects worked together, albeit briefly, on this project and at the Palazzo Spada. Works were completed by Bernini in 1633. After the Wars of Castro and the death of Urban VIII, the palace was confiscated by Pamphili Pope Innocent X and was only returned to the Barberini in 1653. The palazzo is disposed around a forecourt centered on Bernini's grand two-storey hall backed by an oval "salone", with an extended wing dominating the piazza, which lies on a lower level. At