San Callisto (, ) is a Roman Catholic titular church in Rome, Italy, built over the site of Pope Callixtus I's martyrdom (c. AD 222). History The original building dates from the time of Pope Gregory III (r. 731–741), who ordered the building of a church on the site. The church has been rebuilt twice since, first in the twelfth century, and the current church restored in 1610 by Orazio Torriani for the Benedictine monks of Montecassino. In January 2017, in response to Pope Francis's call for an increase in aid to the homeless, especially during the cold winter weather, the Community of Sant'Egidio opened San Callisto as an overnight shelter, with a hot meal available at a nearby cafeteria. Established in 1517, the Titulus San Calixti is currently held by Willem Jacobus Cardinal Eijk. Architecture The seventeenth-century facade carried the coat of arms of Paul V. The altarpiece, by, Avanzino Nucci, depicts the "Glora di San Callisto". The church has a single aisle with a chapel on either side. Within the chapel to the right, two angels attributed to Gian Lorenzo Bernini support a painting by Pier Leone Ghezzi. The chapel on the left contains the well where Callistus I, later venerated as a saint, was martyred. List of titular cardinal-priests Francesco Armellini Pantalassi de' Medici (6 July 1517 – 22 November 1523) Alonso Manrique de Lara (17 April 1531 – 12 July 1532) Jacopo Sadoleto (15 January 1537 – 11 May 1545) Sebastiano Antonio Pighini (27 June 1552 – 23 November 1553) Pietro Tagliavia d’Aragonia (17 July 1555 – 5 August 1558) Ludovico Madruzzo (3 June 1561 – 4 April 1562) Innocenzo Ciocchi Del Monte (4 May 1562 – 17 November 1564) Angelo Nicolini (15 May 1565 – 15 August 1567) Gianpaolo Della Chiesa (5 April 1568 – 14 May 1570) Marco Antonio Maffei (9 June 1570 – 22 August 1583) Lanfranco Margotti (10 December 1608 – 11 January 1610) François de La Rochefoucauld (1 February 1610 – 14 February 1645) Tiberio Cenci (24 April 1645 – 26 February 1653) Prospero Caffarelli (23 March 1654 – 14 August 1659) Vincenzo Costaguti (19 July 1660 – 6 December 1660) Pietro Vidoni (4 July 1661 – 13 March 1673) Fabrizio Spada (23 March 1676 – 23 May 1689) Nicolò Acciaiuoli (28 November 1689 – 28 September 1693) Toussaint de Forbin-Janson (28 September 1693 – 24 March 1713) Gianantonio Davia (30