If you're seeing this message, it means we're having trouble loading external resources on our website.

If you're behind a web filter, please make sure that the domains *.kastatic.org and *.kasandbox.org are unblocked.

Main content

Alberti, Sant'Andrea in Mantua

Leon Battista Alberti, Basilica of Sant’Andrea, Mantua, Italy, 1472-90 (photo: Steven Zucker, CC: BY-NC-SA 3.0)
Mantua's relic
In the Fifteenth Century, pilgrims flocked to the Basilica of Sant’Andrea to venerate the most famous relic in the city of Mantua, drops of Christ’s blood collected at the crucifixion (or so the faithful believed). In fact, the church Sant’Andrea was erected to accommodate the huge crowds that arrived on holy days and who, in turn, helped fund its construction. Today, art historians admire Sant’Andrea's Early Renaissance design for elegantly bringing the grandeur of ancient architecture into a Christian context.

Who built that?

Sant’Andrea is built of bricks, though they are mostly concealed by painted stucco. The patron, Ludovico Gonzaga, estimated that at least 2 million bricks were needed. The bricks were baked in onsite kilns, making the church far less expensive and faster to erect than a building made with stone, which had to be quarried, transported, and finished.
Andrea Mantegna, detail of Ludovico Gonzaga, Camera degli Sposi, 1465-74, fresco, Ducal Palace, Mantua
Gonzaga was the Marquis of Mantua—and in addition to employing Alberti, he appointed Andrea Mantega as court artist. His portrait is featured in the frescos Mantegna painted in the Camera degli Sposi (also known as the Camera Picta), in the Marquis' palace.
The sections of the building constructed in the Fifteenth Century, including the Western façade and the nave up to the transept, are usually attributed to the humanist and architect Leon Battista Alberti, even though he died in Rome a few months before construction began in June 1472. Alberti was an expert on all things ancient and he wrote the first Renaissance architectural treatise.
Alberti probably made a model to explain his design and he definitely sent Gonzaga a drawing (now lost), and a short description of his plan in a letter dated 1470. Despite this, it is uncertain how much of the building follows Alberti's design, how much comes from the Florentine architect Luca Fancelli who directed construction, and how much should be credited to Gonzaga, who closely supervised the project.

Ancient models

Questions of Sant’Andrea's attribution are important because it is such an ingenious, unified combination of three ancient Roman forms: temple front, triumphal arch, and basilica.
Photo adapted from David Nicholls.
On the façade, four giant pilasters with Corinthian capitals support an entablature and pediment.
Together these elements recall the front of ancient temples, such as the Pantheon in Rome. There is also a grand arch in the center of the façade that is supported, at least visually, by two shorter fluted pilasters. Taken together, the lower façade, with its tall central arch and flanking side doors evoke ancient triumphal arches such as the Arch of Constantine.

Ancient rituals

The center arch extends deep into the facade itself, creating a recessed barrel vault that frames the main entrance to the church. The arch and its coffered barrel vault form a perfect setting for processions of the holy relic and the celebration of Christ’s triumph over death. Such spectacles would recall ancient processions where victorious warriors paraded through Rome's triumphal arches.
Leon Battista Alberti, Basilica of Sant’Andrea, Mantua, Italy, 1472-90 (photo: Steven Zucker, CC: BY-NC-SA 3.0)
When pilgrims pass under the arch and into the nave (the long interior hall), after their eyes adjusted to the purposefully dim, mystical light, they would look up and see a second, much more massive barrel vault, the largest constructed since ancient Rome.
Alberti, barrel vault with painted coffers, Basilica of Sant’Andrea, Mantua, 1472-90 (photo: Steven Zucker, CC: BY-NC-SA 3.0)
Then, on both sides of the nave they would find three chapels with lower barrel vaults. Surprisingly, there are no side aisles or rows of columns, as at the old St. Peter’s in Rome or other early churches like Santa Sabina.
Alberti, Basilica of Sant’Andrea, Mantua, 1472-90 nave looking west
Sant’Andrea’s huge central space and buttressing side chapels strongly resemble the layout of the ancient Basilica of Maxentius and Constantine in the Roman forum (below). The basilica plan is perfectly suited to large churches since it could accommodate massive crowds. But unlike earlier basilica-plan churches, Sant’Andrea's plan seems to return more strictly to the ancient forms.
Basilica of Maxentius and Constantine, 308-312 C.E., Roman Forum
It’s even possible that Sant’Andrea’s unusual plan and all’antica (“after the antique”) façade impacted the new St. Peter’s and the Church of the Gesù in Rome.
Essay by Dr. Heather Horton
Additional resources:

Want to join the conversation?

  • leaf orange style avatar for user Jeff Kelman
    We read, "...Sant’Andrea is built of bricks, though they are mostly concealed by painted stucco..."

    Now...I live in Las Vegas, NV which is probably around 99% "stucco" homes...this cannot be the same type of "stucco" used in the Basilica of Sant’Andrea because the Las Vegas variety I find to be of the lowest and least tasteful of all human architecture! Are there different types of "stucco"?
    (6 votes)
    Default Khan Academy avatar avatar for user
    • leaf red style avatar for user Asilly2
      The stucco used in Florence probably consisted of sand, lime, and water, and was applied in three coats. Modernized stucco is composed of sand, water, Portland cement, which originates from limestone, and sometimes additives. It also takes only two coats to apply new stucco. Supposedly, the new stucco is easier to apply than the old, but they both sound difficult to me. If you would like more details, type "netlibrary.net/articles/stucco" into Google, and it should bring you to where I found the most useful information. :)
      (5 votes)
  • winston baby style avatar for user Liotun Dahazrahazyeh
    how much money did 2 million bricks cost back then?
    (5 votes)
    Default Khan Academy avatar avatar for user
  • blobby green style avatar for user Muffet Jones
    Is it known whether the interior of Sant'Andrea influenced Raphael's design for the architecture in The School of Athens? Might he have learned about it from Bramante or seen it for himself?
    (3 votes)
    Default Khan Academy avatar avatar for user
  • aqualine tree style avatar for user David Alexander
    With what was brick construction reinforced in those days. Not steel bars like now. but barrel vaulting, we learned in previous sections on Medieval art and architecture, pushed walls outward unless they were massively supported. This church doesn't appear to be so. My question, then, is "what keeps unreinforced brick construction from just cracking apart?
    (3 votes)
    Default Khan Academy avatar avatar for user
  • blobby green style avatar for user nader201175
    What is the best way to learn the architectural lighting.
    Cause I am my way to be specilized in this field.
    Thank you.
    (0 votes)
    Default Khan Academy avatar avatar for user