Colle di Val d'Elsa

The settlement originally developed as three independent districts: the Borough of Santa Caterina, the Castle of Piticciano (upper town) and the Piano (lower town).

The first two settlements are the oldest and traditionally served as the strongholds of the city's ruling families. Located along the same east–west ridge, they overlook the valley floor, where the third district, the Piano, later developed. Historically, the Piano has been the centre of the town's productive and industrial activities.

Although the territory contains significant archaeological evidence dating back as far as the 4th millennium BC, the earliest written references to Colle di Val d'Elsa date from the 10th century. It was from the late 12th century, however, that the town gradually gained political autonomy and a distinct civic identity. The earliest surviving municipal statutes date back to 1307.

Located along the Via Francigena, Colle di Val d'Elsa began to experience economic development from the 12th and 13th centuries onwards.

As early as the Middle Ages, the urban area, extended beyond the upper town to include the Piano, which developed along the course of the ancient gore, artificial canals branching from the Elsa River. These waterways were constructed over the centuries, beginning in the early 13th century, to power numerous water-driven industries, including mills, paper mills, and fulling mills. The gore contributed significantly to the city's economy, supporting the development of its manufacturing activities.

Throughout its history, Colle di Val d'Elsa was the site of several military conflicts. Among the most notable was the battle of Colle di Val d'Elsa, referenced in Dante Alighieri's Divine Comedy, during the wars of Guelphs and Ghibellines, which had significant consequences for the political balance of Tuscany. Another major event was the siege by the Neapolitan troops in 1479, fought in defense of Florentine territory. The siege caused extensive destruction but also resulted in significant improvements in the town's defensive fortifications.

From the 14th century it was a possession of Florence and the Grand Duchy of Tuscany until the unification of Italy. Colle di Val d'Elsa remained within Florence's sphere of influence, increasing its political importance, particularly under the patronage of the Medici family and through the prominent local citizens who served in the administration of the Grand Duchy of Tuscany. Following the War of Siena and the establishment of the Grand Duchy of Tuscany, Pope Clement VIII created a new diocese in Colle di Val d'Elsa in 1592 through a papal bull.

During the early modern period, the traditional paper industry gradually gave way to the iron and glass industries. Glass production, and later crystal manufacturing, became the town's principal industry. By the 19th century, Colle di Val d'Elsa had become known as "the Bohemia of Italy." It is now commonly referred to as the "City of Crystal".

The period of industrialization coincided with the rise of socialism and the development of political journalism, exemplified by the publication of the newspaper La Martinella.

During World War II Colle di Val d'Elsa was bombed by Allied aircraft.^[4]

The oldest part of the town is "Colle Alta", with a well-preserved medieval centre. The village is entered through the ancient and monumental Porta Nova and winds its long and narrow way in a sequence of fine 16th- and 17th-century noble houses (notable are Palazzo Usimbardi, Palazzo Buoninsegni and the Town Hall) to the Palazzo Campana, which marks the entry to the Castle, the oldest part of Colle di Val d'Elsa. Here, the village is characterized by narrow paved lanes, 15th- and 16th-century noble houses (such as Palazzo Luci, Palazzo Morozzi, Palazzo Giusti, Palazzo Dini) and tower-houses, including the one where Arnolfo di Cambio was born. At the centre of the old town stands the Colle di Val d'Elsa Cathedral. Overlooking the valley stands the Convent of St. Francis.

In addition to its historic centre, Colle di Val d'Elsa has also been shaped by urban regeneration projects based on contemporary art and architecture.^[5]

The municipality is formed by the city of Colle di Val d'Elsa and the towns and villages (frazioni) of Bibbiano, Borgatello, Campiglia dei Foci, Castel San Gimignano, Collalto, Gracciano dell'Elsa, Le Grazie, Mensanello and Quartaia.^[1] Other notable villages within the comune include Boscona, Buliciano, Coneo, Lano, Montegabbro, Onci, Partena, Paurano, Sant'Andrea and Scarna.

• Arnolfo di Cambio, architect and sculptor
• Cennino Cennini, painter
• Bartolomeo Scala, politician, author and historian
• Alessandra Scala, humanist and scholar
• Francesco Campana, statesman
• Isabella Cervoni, poet
• Pietro Usimbardi, bishop of Arezzo and secretary to the Grand Dukes of Tuscany
• Ferdinando Morozzi, cartographer and architect
• Antonio Salvetti, architect and painter
• Tarquinia Tarquini, dramatic soprano
• Mino Maccari, painter, engraver and writer
• Romano Bilenchi, novelist, short story writer and essayist

• Bir Gandus, Western Sahara