Palazzo Pubblico
The curve of the Palazzo Pubblico's façade is not an accident. It bends slightly inward to mirror the convex sweep of the Piazza del Campo in front of it — a 13th-century architect's way of making a building feel continuous with the square it governs. Stone on the lower story, brick above, with triforate windows dividing each upper bay into three slender arches: the whole thing reads as a lesson in how a city once wanted to present itself to the world.
Built between 1297 and 1310 as the seat of Siena's Council of Nine, the palazzo still anchors the Campo. Inside the Civic Museum, two rooms hold frescoes that change how you think about medieval painting.
💛 What travellers fall for
People who come back tend to linger in the Sala della Pace longer than planned. Lorenzetti's Good Government fresco wraps around three walls and rewards slow looking — there are merchants, builders, dancers, a hanged man, all rendered in 1338. The Loggia dei Nove on the second floor, overlooking the Piazza del Mercato, is easy to miss and usually quiet.
Deals in Palazzo Pubblico
Book directly at the providerHow Palazzo Pubblico came to be
Construction began in 1297, when Siena was governed by the Council of Nine — a rotating body of merchants who ran the republic for roughly 70 years. The building was designed in three functional sections: judicial to the east, legislative at the taller centre, executive to the west. The Torre del Mangia rose alongside it between 1325 and 1344, built deliberately to match the height of Siena Cathedral — a statement that civic and ecclesiastical power stood equal. Its first bell-ringer, Giovanni di Duccio, was nicknamed Mangiaguadagni (profit eater) for his idle habits, and the tower took his name.
In 1348 the Black Death killed roughly half of Siena's population. The Cappella di Piazza at the tower's base was built in 1352 as thanksgiving for the plague's end. Nearly a century later, in 1425, a bronze Christogram was fixed to the façade — placed there after Saint Bernardino preached a series of sermons aimed at cooling the factional violence that had long fractured the city.
Who and what shaped it
People who shaped it
Landmark buildings
Plan your visit
On the map
When to go
Right now
Background & history adapted from Wikipedia (CC BY-SA) · specs from Wikidata (CC0) · weather from Open-Meteo · map data © OpenStreetMap contributors · photos from Wikimedia Commons / Unsplash with per-image credit. No third-party reviews or social posts reproduced.