The Medici Fortress of Lucignano, also known as Le Fortezze, stands as one of the most significant reminders of the Medici presence in the Valdichiana region. Situated on a hill not far from the historic centre of Lucignano, the structure was built as part of an ambitious defensive project designed to consolidate Florentine control over a territory long contested between Florence and Siena.

Its history is closely linked to the events that marked the end of the Republic of Siena. Following the decisive Battle of Scannagallo in 1554, which sealed Florentine supremacy in the conflict, Lucignano came definitively under Medici rule. It was then that Cosimo I de’ Medici commissioned a series of major urban and architectural works in the village, including the construction of the fortress, traditionally attributed to Bernardo Puccini.

The structure was built on a hill opposite the town and was intended to serve as an advanced defence system to protect the castle and the surrounding territory. The structure consisted of two large bastions facing Siena, connected by a curtain wall at the centre of which stood the monumental Porta Reale. The architectural features fully reflect the military innovations of the Renaissance, developed to withstand artillery and new siege techniques.

However, the fortress was never completed. The final fall of the Republic of Siena in 1558 rendered its strategic function less urgent, and the project was gradually abandoned. In the centuries that followed, the structure fell into a state of gradual decline. In 1778 it was sold and part of the internal buildings was converted for civilian use. The cylindrical towers visible today were added in later periods and used as windmills, giving the fortress an even more distinctive appearance.

During the 19th century, the complex housed rural dwellings, a bakery and a mill, whilst progressive neglect led to an increasingly evident deterioration of the structures. It was not until the 20th century that the first conservation and enhancement works began on the site, recognised as an important historical and architectural testament to Medici Tuscany.

After decades of neglect, a major restoration project launched in 2019 has enabled the restoration of part of the complex. In March 2024, the Medici Fortress was finally reopened to the public, offering visitors one of Lucignano’s most evocative sites. Today, the area is freely accessible and offers a splendid view of the village and the Valdichiana landscape, whilst also serving as a venue for cultural events, exhibitions and initiatives promoting the local area.

Although it remains unfinished, the Medici Fortress continues to recount a pivotal chapter in Tuscan history, bearing witness to the transition from the era of great wars between city-states to the consolidation of Medici power over the region.