Castello Sforzesco

Among the largest citadels in Europe, Castello Sforzesco commands the center of Milan with its massive red-brick walls and soaring central tower. Francesco Sforza built this fortress in the fifteenth century on the remnants of a fourteenth-century fortification. Since its Renaissance transformation, the castle has housed ducal courts, foreign armies, and now holds some of northern Italy’s finest art collections. Luca Beltrami extensively rebuilt it in 1891–1905, so it now houses several of the city’s museums and art collections.

Location of Castello Sforzesco

The castle occupies Piazza Castello 3 in the 20121 district of Milan. Its grounds connect to Parco Sempione, with large courtyards, massive walls, moat, towers and crenulated battlements. The fortress sits northwest of Milan’s old town, easily reached on foot from Piazza del Duomo through Via Dante. Trams pass right by the fountain in front of the castle, linking it to the wider city. Visitors can explore this fascinating castle at the centre of Milano without charge because the courtyards open freely. Behind the complex, Parco Sempione extends toward the Arco della Pace and offers green space for walks after exploring the museums.

History of Castello Sforzesco

In 1358 Galeazzo Il Visconti, the first duke of Milan, ordered the construction of a fortress. Workers completed it in 1368 with a basic layout of four walls, each one hundred eighty meters long and a square tower at each corner. His successors Gian Galeazzo and Filippo Maria expanded the fortress and converted it into a palatial residence. After Filippo Maria Visconti died without leaving an heir in 1447, the Milanese people proclaimed the Ambrosian Republic and razed the castle to the ground.

The fledgling republic turned to the renowned military leader Francesco Sforza for help. Just three years later, Sforza grabbed power and declared himself duke of Milan. In 1450, Francesco Sforza, the Duke of Milan, commissioned its restoration as a private residence, known as Sforzesco Castle. In 1452 the new ruler of Milan commissioned a team of architects and engineers for a complete redesign of the castle. The team included Giovanni da Milano, Jacopo da Cortona, Marcoleone da Nogarolo, Antonio Averulino (also known as Filarete), and Bartolomeo Gadio. The project aimed to make it both a residential palace and a modern fortress.

His son Ludovico Sforza added many decorative elements inside and effectively transformed it into a magnificent residence. He turned it into a ducal palace where Leonardo da Vinci and Bramante painted frescoes on its walls. Da Vinci also designed the castle’s own defences. In 1521 an accidental explosion of gunpowder, possibly due to lightning, caused the central tower to collapse. Under the Spanish domination which followed, the castle became a citadel. The governor’s seat moved to the Ducal Palace, with its garrison varying from 1,000 to 3,000 men. In the early 19th century, during his campaign in northern Italy, Napoleon Bonaparte had the moat dried up and the drawbridges removed.

Current status

The Municipality of Milan owns the castle and opens it to the public. The fortress in the heart of the city of Milan hosts 8 museums and 9 cultural institutions. The various frescoed rooms of the museum house an armoury, a tapestry room, some funerary monuments, Michelangelo’s Rondanini Pietà and two medieval portals. The Pinacoteca displays over 230 artworks, which include masterpieces by Titian, Andrea Mantegna, Canaletto and others, while the complete collection has more than 1,500 artworks.

The castle grounds open daily from 7:00 am to 7:30 pm, with entrance to the courtyard free. Museums open from Tuesday to Sunday, 10 a.m. to 5.30 p.m., with last entry at 4.30 p.m. A single ticket grants access to all museums within the complex. Each side of the fortress measures 200 metres and each of its corners rises to towers. Francesco Sforza commissioned the magnificent square keep at the centre of the façade to the architect Filarete in 1452. He intended to improve the appearance of a fortress and give it the appearance of an elegant residence.

Locals cut through the complex between the city center and Parco Sempione, while visitors explore the Cortile delle Armi parade ground, the refined Corte Ducale and the defensive Rocchetta. Leonardo da Vinci’s Sala delle Asse displays his painted ceiling illusion of intertwining mulberry trees, recently restored to reveal more of his original work. The fortress stands where military power once shaped Milan and where art now defines the city’s cultural legacy.