Basilica of Santa Maria del Popolo, 1472–1477, Rome, possibly designed by Baccio Pontelli (active c. 1470–1490) and Andrea Bregno (active c. 1460–1503), rebuilt under Pope Sixtus IV (1414 – 1484)
Old buildings almost never endure as single, resolved statements. Time will not allow it. They are reworked, broken open, refitted to new purposes, and the line between survival and alteration grows indistinct. What we inherit is a surface of revisions: each century laying down its own syntax upon the remains of the last. The past is legible, but only through interference. The vitality of architecture lies in this slow corrosion of purity, in the way new meanings press against old walls, creating a texture of historical unease. By reading these surfaces closely, one can discern the boundaries between epochs.
The Basilica of Santa Maria del Popolo in Rome embodies this process with exceptional clarity. Its origins are entangled with legend: Pope Paschal II (c. 1050–1118) is said to have founded a chapel on the site in 1099, over the supposed burial place of Nero, where a walnut tree had grown and the emperor’s ghost was believed to linger. The pope ordered the tree felled and a shrine raised in its place, consecrated to the Virgin. The Augustinian friars who were given charge of the church maintained it through the following centuries, but its transformation into a major Roman monument began under Pope Sixtus IV (1414–1484), who commissioned a complete rebuilding between 1472 and 1477. The new church, attributed to the architect Baccio Pontelli (c. 1450–1492), was among the first great expressions of Renaissance order in the city. Its measured proportions, groin vaults, and luminous interior established a language of equilibrium that later patrons continuously redefined.
Over the following centuries, cardinals and noble families transformed this modestly scaled church into a sequence of private monuments, each reflecting its moment in Roman taste: from Pinturicchio’s quattrocento frescoes and the sculpted classicism of the choir tombs, to Raphael’s harmonious geometry, Caravaggio’s violent illumination, and Bernini’s exuberant ornament. The result is less a unified style than a living archive of artistic dialogue, where successive generations talked back to those who came before.
The Renaissance chapels preserve the calm geometry of the church’s original conception. The Della Rovere Chapel, commissioned by Cardinal Domenico della Rovere (c. 1442–1501) and painted by Pinturicchio (c. 1454–1513) in the late 1480s, still reflects the lucid linearity and brilliant colour of the early Renaissance. The Costa Chapel, completed around 1505 for the Portuguese Cardinal Jorge da Costa (c. 1406–1508), contains a marble dossal attributed to Gian Cristoforo Romano (c. 1465–1512), a tripartite aedicule framed by Corinthian pilasters and shell-headed niches whose stillness is defined by light rather than shadow. Around the same period, Pope Julius II (1443–1513) commissioned Donato Bramante (1444–1514) to redesign the choir, where Andrea Sansovino (c. 1467–1529) carved the monumental wall tombs of Cardinal Ascanio Sforza (1455–1505) and Cardinal Girolamo Basso della Rovere (1434–1507), their recumbent figures resting within deep arched recesses that draw equally on ancient sarcophagus types and the architectural language of the new church.
Raphael’s Chigi Chapel, begun in 1513 for the Sienese banker Agostino Chigi (1466–1520), extended this classical balance into a domed, centralised plan uniting sculpture and mosaic, the latter designed by Raphael himself and executed by the Venetian mosaicist Luigi de Pace . Yet Bernini’s completion of the chapel in the 1650s, undertaken for Pope Alexander VII (1599–1667), transformed stillness into movement. His additions, including the dramatically posed figures of Daniel and the Lion and Habakkuk and the Angel, introduced a theatrical energy that pulled the chapel’s restrained geometry into a new register.
The rupture becomes most vivid in the Cerasi Chapel, where Caravaggio’s Conversion of Saint Paul and Crucifixion of Saint Peter (1600–1601) introduced a pictorial language so immediate that it seemed to violate the calm architecture around it. Commissioned by Tiberio Cerasi (c. 1544–1601), Treasurer General of the Apostolic Chamber, the chapel also houses an altarpiece by Annibale Carracci (1560–1609), whose Assumption of the Virgin occupies a more conventional idealism, and the contrast between the two painters only sharpens what Caravaggio was doing. In his canvases, light explodes from darkness, space collapses into the viewer’s field, and the sacred assumes the texture of the real. One might ask whether contemporaries, raised on the idealised balance of the late Renaissance, grasped the full scale of what had changed, or whether the shock took time to register. Giovanni Baglione (1566–1643), a rival painter and early biographer of Caravaggio, later described his manner as intensely naturalistic and striking in its contrasts of light and dark, acknowledging both its truth and its capacity to unsettle. Baglione’s account, published in his Le vite de’ pittori, scultori et architetti (1642) [The Lives of the Painters, Sculptors and Architects: from the Pontificate of Gregory XIII in 1572 to the Times of Pope Urban VIII in 1642], is coloured by personal animosity (the two men had clashed bitterly, including in court), and yet even through that hostility the force of Caravaggio’s achievement is legible.Within the same church that had once embodied composure and harmony, art now demanded confrontation.
The church remains a microcosm of Rome itself: a city built on renewal, where every act of preservation is also an act of transformation, and where the dialogue between order and invention has never ceased.
Giovanni di Stefano (active c. 1450–1506), Tomb of Cardinal Pietro Foscari, c. 1480, Marble, Costa Chapel (Chapel of Saint Catherine), Basilica of Santa Maria del Popolo, Rome
Ercole Antonio Raggi (1624–1686), Cantoria dell’organo (right choir loft), 1656–1657, Marble and gilded wood, after a design by Gian Lorenzo Bernini (1598–1680), Basilica of Santa Maria del Popolo, Rome
Bernardino Mei (1612–1676), The Holy Family with Angels and Symbols of the Passion, c. 1658, Oil on canvas, Basilica of Santa Maria del Popolo, Rome
Basilica of Santa Maria del Popolo, 1472–1477, Rome, possibly designed by Baccio Pontelli (active c. 1470–1490) and Andrea Bregno (active c. 1460–1503), rebuilt under Pope Sixtus IV
Pasquale de’ Rossi (1641–1722), The Baptism of Christ, c.1674, Altarpiece for the Montemirabile Chapel, Basilica of Santa Maria del Popolo, Rome
Pinturicchio (c. 1454–1513), Madonna and Child with Saints, 1488–1490, Fresco, Basso Della Rovere Chapel, Basilica of Santa Maria del Popolo, Rome
Leonardo Sormani (active c. 1550–1590), Funeral Monument of Vincenzo Parenzi, c. 1585, Marble, Basilica of Santa Maria del Popolo, Rome
The Costa Chapel (also known as the Chapel of Saint Catherine), c. 1505, Basilica of Santa Maria del Popolo, Rome. Commissioned by Cardinal Jorge da Costa (1406–1508), the chapel is situated in the south aisle of the basilica and contains Gian Cristoforo Romano’s marble Dossal of Saint Catherine of Alexandria, framed by Corinthian pilasters and shell-headed niches, along with frescoes attributed to Pinturicchio (c. 1454–1513)
References
Blunt, A. (2026) A Guide to Baroque Rome: The Churches. Edited by M. Erwee. 3rd edn. London: Pallas Athene
Dunlop, A. (2003) ‘Pinturicchio and the pilgrims: devotion and the past at Santa Maria del Popolo’, Papers of the British School at Rome, 71, pp. 259–285.Available at , https://www.jstor.org/stable/i40012730 (Accessed 18 Octobe 2025)
Murray, C. (2011) Blue Guide Rome. 9th ed. London: A. & C. Black
Shearman, J. (1961) ‘The Chigi Chapel in S. Maria del Popolo’, Journal of the Warburg and Courtauld Institutes, 24(3/4), pp. 129–160.Available at, https://www.jstor.org/stable/i230433 (Accessed 18 October 2025)