San Marco Evangelista al Campidoglio, Rome


San Marco is a titular basilica in Rome dedicated to Saint Mark the Evangelist, located in the small Piazza di San Marco adjoining Piazza Venezia. It was first consecrated in 336 by Pope Mark and rebuilt in its present form in 833 by Pope Gregory IV. Today, the basilica is the national church of Venice in Rome.

History

Earlier buildings

According to the Liber pontificalis, Pope Mark established a basilica in a place called ad Pallacinas in 336. This first church was built atop preexisting, pre-Constantinian structures of unknown date or function, but excavations in the mid-20th century revealed a surviving ancient Roman mosaic with acanthus vine-scroll ornamentation underneath the present-day basilica's right aisle. Pope Mark's first church incorporated walls from this earlier structure, and featured a new colonnade, opus sectile pavements, and frescoed walls, of which a small fragment depicting several horses survives underneath the present-day basilica. The synod of Pope Symmachus in 499 records the church as Titulus Marci. It is likely that the previous ancient Roman structure was initially a residence owned by Pope Mark, who then gifted the property to a Christian congregation within the first few months of his papacy. Archaeological excavations further revealed burned marble and ash deposits on the pavement, which provide evidence that the first church was likely destroyed in a fire.
A second church was built possibly in the second half of the 6th century, but the lack of archaeological evidence and written records make it difficult to properly date. The floor was placed one meter above the first church's floor, possibly to protect the structure against flooding, which was common in medieval Rome. This second church followed the first church's floor plan, only with the addition of a chancel enclosure that divided the nave and provided space for the Schola Cantorum. The Liber pontificalis notes that Pope Adrian I made repairs to the second church's roof and aisles, and provided the basilica with altar cloths, curtains, and seven gold chalices.

Present-day basilica

According to the Liber pontificalis, Pope Gregory IV saw the ruinous state of the second church and decided to have it demolished in 833 to rebuild the basilica now seen today. The new church's floorplan also aligns with the prior churches, with two aisles flanking a nave that terminates in an apse. The floor consists of large blocks of tufa that were likely part of the Servian walls. Gregory IV's unique contributions to this rebuilding was the monumental apse mosaic, the annular crypt, and the clerestory.
The apse mosaic is the best surviving element of the Gregory IV's resconstruction in 833. It depicts Jesus in the center with Pope Mark, St. Agapetus, and St. Agnes to his left and St. Feliccissimus, Gregory IV, and St. Mark the Evangelist to his right. All seven figures stand against a solid golden backdrop standing atop pedestals with inscriptions identifying the figures. Below the figures, twelve lambs representing the Twelve Tribes of Israel, lead out of Bethlehem and Jerusalem and surround the Lamb of God. On the apsidal arch, St. Peter and St. Paul stand beneath the roundels of Christ and the Four Evangelists.
The Latin dedicatory inscription running along the bottom of the apse mosaic reads:
English translation:
The huge supports of the apse, which shine like Solomon's temple beneath the stars, rests on a solid foundation. These things, O Mark, the pope with the distinguished name of Gregory IV has made for you and in your own honor. And you pray that God may grant him a long life on earth and after death lead him to the stars of heaven.

The choice to position Mark the Evangelist in the composition in the place traditionally reserved for St. Peter appears to be an intentional subversion of established apse mosaics depicting groups of saints with the donor pope. Art historian Claudia Bolgia suggests that the translation of Mark's relics from Alexandria to St. Mark's Basilica in Venice in 830–31 had an influence on Pope Gregory IV's decision to depict himself in relationship to this particular evangelist. Furthermore, the inclusion of Sts. Agapetus and Feliccissimus may refer to Gregory IV having recently sent their relics to a Bavarian monastery. Therefore, the apse mosaic evokes the spiritual presence of these saints, despite their relics physically existing outside of Rome and, therefore, the immediate jurisdiction of the Holy See. While papal self-representation in apse mosaics was fairly common in the ninth century, Pope Gregory IV's inclusion in at San Marco speaks to his desire to establish papal authority in the city.
Further changes were made to the church throughout the 12th century, with the addition of a Romanesque campanile above the southern end of the nave, sculptural work around the main southern portal, and a new ciborium above the high altar. From 1465–70, Pope Paul II renovated the church's façade according to the Renaissance taste, with a two-storied portico and loggia, using marbles taken from the Colosseum and the Theater of Marcellus. It was at this time that the church was incorporated into the Palazzo Venezia complex, and the clerestory windows were enlarged and ornamented with Gothic tracery, a common feature of Quattrocento Roman architecture. Inside, the wooden ceiling with the emblem of Pope Paul II is one of only two original 15th-century wooden ceilings that can be seen in Rome today. In 1564, Pope Pius IV gave the Republic of Venice control over most of Palazzo Venezia to use as its embassy, thereby making the basilica the national Venetian church in Rome.
During the early modern period, the church's interior underwent two major redecoration campaigns in the Baroque style. From 1654–57, Niccolò Sagredo commissioned Orazio Torriani to redecorate the colonnade with regularized Ionic capitals and white-washed shafts. Then, from 1732–54, Cardinal Angelo Maria Quirini commissioned Filippo Barigioni to redesign the high altar and choir stalls. Paintings and sculptures by Baroque and Neoclassical artists, such as Pier Francesco Mola, Guillame Courtois, Palma il Giovane, Luigi Primo, Carlo Maratta, Cosimo Fancelli, and Antonio Canova can be found in throughout the nave of the present-day church.
In 1843, Gregory IV's annular crypt, which had been closed in 1474 under Cardinal Marco Barbo, was rediscovered. Excavations in 1947–50 revealed the foundations and remnants of the earlier churchs, as well as a large cypress chest in the crypt that contained the relics of Pope Mark, St. Abdon and St. Sennen.

Cardinal priests

The following is a list of the past cardinal priests of San Marco, Rome:
ImageNameDatesNotes
Gregorio79720 December 827Elected Pope Gregory IV
Adriano84213 November 867Elected Pope Adrian II
Guido di CastelloDecember 111326 September 1143Elected Pope Celestine II
John of Anagni1168–1190
Rolando Bandinelli11517 September 1159Elected Pope Alexander III
Goffredo Castiglione18 September 12271239Appointed Bishop of Sabina, later elected Pope Celestine IV
Pietro Peregrosso12891 August 1295Died
Giovanni Gaetano Orsini16 September 131727 August 1335Died
Bertrand de Déaulx18 December 1338 – 4 November 1348Appointed Bishop of Sabina
Francesco degli Atti23 December 135625 August 1361Died
Jean de Blauzac 17 September 13611372Appointed Bishop of Sabina
Pierre Amiel de Sarcenas18 December 137910 August 1389Died
Giovanni Fieschi1390December 1381Died
Ludovicio Donato13821385Died
Angelo Correr 12 June 140530 November 1406Elected Pope Gregory XII
Antonio Calvi2 July 14092 October 1411Died
Guillaume Fillastre6 June 14116 November 1428Died
Angelotto Fosco19 September 14316 November 1428Died
Pietro Barbo16 June 145130 August 1464Elected Pope Paul II
Marco Barbo2 October 14672 March 1491Died
Lorenzo Cibo de Mari14 March 149121 December 1503Died
Domenico Grimani25 December 150327 August 1523Died
Marco Cornaro14 December 152320 May 1524Appointed Bishop of Albano
Francesco Pisani3 May 152721 June 1564Resigned
Luigi Cornaro21 June 15642 June 1568Opted for the titulus of S. Vitale
Luigi Pisani2 June 15683 June 1570Died
Luigi Cornaro 9 June 157010 May 1584Died
Giovanni Francesco Commendone14 May 158426 December 1584Died
Agostino Valier14 January 15851 June 1605Appointed Bishop of Palestrina
Giovanni Delfino1 June 160523 June 1621Translated to San Girolomo dei Croati
Matteo Pruilli23 June 162113 March 1624Died
Pietro Valier18 March 16249 April 1629Died
Federico Cornaro26 April 162919 November 1646Translated to Santa Maria in Trastevere
Marcantonio Bragadin19 November 164628 March 1658Died
Cristoforo Vidman1 April 165830 September 1660Died
Pietro Ottoboni15 November 166013 September 1660Translated to Santa Maria in Trastevere
Gregorio Barbarigo13 September 167718 June 1697Died
Marcantonio Barbarigo1 July 169726 May 1706Died
Giambattista Rubini25 June 170617 February 1707Died
Giovanni Alberto Badoer11 July 171214 May 1714Died
Luigi Priuli28 May 171415 March 1720Died
Pietro Priuli6 May 172022 January 1728Died
Angelo Maria Quirini8 March 17286 January 1755Died
Carlo della Torre Rezzonico17 February 17556 July 1758Elected Pope Clement XIII
Antonio Maria Pruili19 April 176226 October 1772Died
Carlo Rezzonico14 December 177226 January 1799Died
Ludovico Flangini Giovanelli2 April 180024 May 1802Translated to S. Anastasia
Luigi Ercolani22 July 181610 December 1825Died
Karl Kajetan von Gaisruck21 May 182919 November 1846Died
Charles Januarius ActonDied
Giacomo Piccolomini4 October 184717 August 1861Died
Pietro de Silvestri27 September 186119 November 1875Died
Domenico Bartolini3 April 18762 October 1887Died
Michelangelo Celesia25 November 188714 April 1904Died
József Samassa11 December 190520 August 1912Died
Franz Xavier Nagl2 December 19124 February 1913Died
Friedrich Piffl25 May 191412 April 1932Died
Elia Dalla Costa13 March 193322 December 1961Died
Giovanni Urbani19 March 196217 September 1969Died
Albino Luciani5 March 1973 – 26 August 1978Elected Pope John Paul I
Marco Cé30 June 197912 May 2014Died
Angelo De Donatis28 June 2018todayCurrent cardinal priest