Церковь Святого Игнатия Лойолы: История и Искусство в Риме.

The Church of St. Ignatius of Loyola at Campus Martius (, Ecclesia Sancti Ignatii a Loyola in Campo Martio) is a Latin Catholic titular church, of deaconry rank, dedicated to Ignatius of Loyola, the founder of the Society of Jesus, located in Rome, Italy. Built in Baroque style between 1626 and 1650, the church functioned originally as the chapel of the adjacent Roman College, which moved in 1584 to a new larger building and was renamed the Pontifical Gregorian University.

The Collegio Romano opened very humbly in 1551, with an inscription over the door summing up its simple purpose: "School of Grammar, Humanity, and Christian Doctrine. Free". Plagued by financial problems in the early years, Marchesa della Valle, donated her family isola, an entire city block and its existing buildings, to the Society of Jesus in memory of her late husband the Marchese della Guardia Camillo Orsini, founding the Collegio Romano. She had previously intended to donate it to the Poor Clares for the founding of a monastery. The nuns had already started to build what had been intended to become the Church of Santa Maria della Nunziata, erected on the spot where the Temple of Isis had stood. The nave's west wall has a sculptural group depicting Magnificence and Religion (1650) by Alessandro Algardi. Algardi also helped design the high reliefs in stucco that run on both lateral nave walls just above the entries to the chapels and beneath the nave's grandiose entablature. Other artworks in the church include a huge stucco statue of St. Ignatius by Camillo Rusconi (1728).

Andrea Pozzo, a Jesuit lay brother, painted the grandiose fresco that stretches across the ceiling of the nave around 1685. It celebrates the work of Saint Ignatius and the Society of Jesus in the world presenting the saint welcomed into paradise by Christ and the Virgin Mary and surrounded by allegorical representations of all four continents. By the skilful use of linear perspective, light, and shade, he made the great barrel vault of the nave of the church into an idealized aula from which is seen the reception of St. Ignatius into the opened heavens. Pozzo also frescoed the pendentives in the crossing with Old Testament figures: Judith, David, Samson, and Jaele. Pozzo also painted the frescoes in the eastern apse depicting the life and apotheosis of St Ignatius. (1697–99) by the French sculptor Pierre Le Gros. Andrea Pozzo painted the ceiling which also shows the Glory of the Saint. Buried in the side altar next to Gonzaga is Cardinal St. Robert Bellarmine. The chapel in the left transept houses the relics of Saint John Berchmans. The chapel just to the right of the church's presbytery (at the south east corner) houses the funerary monuments of Pope Gregory XV and his nephew, Cardinal Ludovico Ludovisi, the church's founder. Pierre Le Gros designed the monument and executed most of it himself c. 1709–14 with the exception of the two flying personifications of Fame which are by Pierre Étienne Monnot. The chapel in the left transept has a marble altarpiece of the Annunciation by Filippo Della Valle, with allegorical figures and angels (1649) by Pietro Bracci, and a frescoed ceiling with The Assumption by Pozzo. The second and first chapels to the left have paintings by Jesuit Pierre de Lattre, who also did the sacristy paintings.

The cardinal deaconry of Sant Ignazio di Loyola a Campo Marzio was established 28 June 1991. Its cardinals include:
Paolo Dezza, S. J. (28 June 1991 – 17 December 1999)
Roberto Tucci, S. J. (21 February 2001 — 12 February 2011; as cardinal priest 21 February 2011 — 14 April 2015)
Luis Francisco Ladaria Ferrer, S. J. (28 June 2018 present)