The history of Florence Duomo, officially the Cattedrale di Santa Maria del Fiore, began on September 8, 1296, with the laying of the first stone. Designed by Arnolfo di Cambio, it was conceived to be the largest and most magnificent church of its time, a symbol of Florence's growing power and prestige, built to rival the cathedrals of Siena and Pisa.
The Early Construction: A Century of Progress
The initial phase of construction was ambitious. Arnolfo di Cambio envisioned a grand Gothic structure, but his death around 1302 brought work to a halt. The powerful Wool Guild took over patronage and in 1334, they appointed the celebrated artist Giotto as the new master builder.
Giotto's main contribution was the design and initial construction of the magnificent Campanile (Bell Tower) that now bears his name. After Giotto's death in 1337, work on the cathedral continued under a series of architects, including Andrea Pisano and Francesco Talenti, who expanded di Cambio's original plan, increasing the building's overall size. By 1380, the main body of the cathedral was complete, but a colossal problem remained: a 45-metre-wide hole in the roof where the dome was meant to be.
The Challenge of the Dome
For nearly four decades, the cathedral remained open to the elements as no one possessed the technical knowledge to build a dome of such unprecedented size. The city of Florence announced a public competition in 1418 to find a solution.
Who built the dome of the Florence Duomo?
A goldsmith and clockmaker with no formal architectural training, Filippo Brunelleschi, won the competition with a revolutionary proposal. He suggested building not one, but two domes—an inner shell and a protective outer shell—using a unique herringbone brick pattern and a system of internal chains to counteract the outward pressure. This allowed the dome to be built without the massive and expensive wooden scaffolding that everyone assumed would be necessary.
- 1420: Construction on Brunelleschi's dome officially begins on August 7.
- 1436: The dome is structurally completed. The cathedral is consecrated by Pope Eugene IV on March 25, 1436, the first day of the Florentine new year.
- 1446-1461: The lantern, the marble structure crowning the dome (also designed by Brunelleschi), is built and completed.
Art, Intrigue, and Completion
With the structure complete, attention turned to its decoration. However, the Duomo's history was not without drama. On April 26, 1478, the cathedral became the backdrop for the Pazzi Conspiracy, a failed attempt to overthrow the Medici family by assassinating Lorenzo and his brother Giuliano during Mass. Giuliano was killed, but Lorenzo's survival solidified his family's power.
When was the facade of the Duomo finished?
The final major element of the Duomo complex took centuries to complete. The original Renaissance facade was never finished and was dismantled in 1587. For almost 300 years, the front of the cathedral remained a bare brick wall. It was not until the 19th century that a new design was chosen. The current, elaborate neo-Gothic facade of green, white, and pink marble was finally completed in 1887, designed by Emilio de Fabris.
Inside the dome, Giorgio Vasari began painting the vast Last Judgment fresco in 1572. After his death, it was finished by Federico Zuccari in 1579, completing the artistic vision of the cathedral's interior.
From its medieval beginnings to its Renaissance triumph and final completion, the Duomo stands as a testament to Florentine ambition, faith, and genius. To truly appreciate this incredible history, consider taking one of the guided tours that reveal the stories behind the architecture.
Frequently asked questions
How long did it take to build the Florence Duomo?
The entire Florence Duomo complex took approximately 140 years to build, from the start of the cathedral's construction in 1296 to the completion of the dome in 1436. However, the facade was not finished until 1887.
Was the Duomo the largest church in the world?
Upon its completion in the 15th century, Florence's Santa Maria del Fiore was the largest cathedral in Europe. Today it remains one of the largest in the world, ranking behind St. Peter's Basilica in Rome and St. Paul's in London.
Why is it called Santa Maria del Fiore?
The cathedral's name, Santa Maria del Fiore, translates to "Saint Mary of the Flower." This is believed to be a reference to the lily, the symbol of the city of Florence.
Ready to step into history? You can book tickets now to explore the Duomo, climb Brunelleschi's magnificent dome, and witness this architectural marvel for yourself.