Niscemi

Territory

The town is located on a plateau 332 m above sea level.^[5] The municipality covers an area of 9,654 hectares with a population density of 285 inhabitants per square kilometer. Niscemi is situated on a hill nestled in the Erei Mountains and on the slopes of the Iblei Mountains, with a western view of the Maroglio River valley and the Gela Plain.

The territory of Niscemi is located in a geological context characterised by Miocene clay hills, covered by a large mantle of Pliocene sands, calcareous tuffs and conglomerates.

The Sugherata di Niscemi Nature Reserve is the remnant of a vast wooded area that covers the last foothills of the Iblei Mountains, sloping down towards the coast of the Gela plain. It rises at 330 meters above sea level, on the part of the plateau where the town is located.^[6]

Foundation and Norman period

Following the Norman conquest, a new town was founded under the name of Nixenum in 1143. Having become a rural fief, the territory underwent radical changes until, in 1324, a branch of the Branciforte family moved from Piacenza in Sicily (in the 13th century) and bought the lands of Nixenum.^[7]

Niscemi, a simple rural village during the Swabian-Angevin period, was part of the County of Garsiliato, which included the territories of Terranova di Sicilia, present-day Gela. After a complex history, the county was granted in 1393 by the Aragonese King Martin the Younger to Don Nicola Branciforte, Lord of Mazarin, and his successors. A long and intricate historical network connects this event to the founding of Niscemi, officially recognized by the Licentia populandi of June 30, 1626, granted to Donna Giovanna Branciforte on behalf of her son Giuseppe by the Viceroy, Cardinal Giovanni Doria, in exchange for the payment of 400 eleven. This network spans the history of all of Sicily, woven by the most powerful families on the island and leading, as everyone knows, to the repopulation of the region through the policy of large estates and the founding of new cities.^[8]

The principality of Niscemi was founded in 1627 by the Branciforte family,^[9] the city was heavily damaged by the earthquake of 1693 and was completely rebuilt on the same site.^[10]

Contemporary Age

In 1997, a landslide swept away a large part of the Sante Croci neighborhood; 70 homes were destroyed. The church for which the neighborhood is named remained standing on the edge of the chasm but had to be demolished later.^[11]

2026 Landslide

On January 25, 2026, the town was damaged by another landslide in the same area, spectacular and highly destructive although it caused no casualties: during a storm, a section of the cliff bordering the plateau on which the town center is perched collapsed, destroying some buildings and leaving houses dangerously on the edge of the precipice, while according Italian civil protection authorities have evacuated more than a thousand people within a four-kilometer radius of the disaster.^[12][13]

ISPRA's IdroGEO allows the analysis of the landslide through thematic maps, historical data and satellite and ground monitoring systems, used to follow the evolution of the phenomenon.^[14]

Religious architecture

• Santa Maria d'Itria: mother church of town and it stands in Piazza Vittorio Emanuele III. Rebuilt after the 1693 Val di Noto earthquake.^[15][16]
• Church of the Addolorata (18th century)^[17]
• Church of the Madonna del Bosco (18th century), elliptical plan^[18]
• Remains of the ancient Nixenum

Civil architecture

• Belvedere Terrace: formerly known as Tunnu, is a panoramic terrace built in 1803,^[19] offering a magnificent view of the Gela plain and the Maroglio River valley. Built in Baroque style at the beginning of the 19th century, it has a rounded shape surrounded by a wrought-iron railing and benches. It represents the final destination of a stroll through the historic center. It was rebuilt in 1921 following damage sustained in a landslide. It was completely destroyed in a landslide in January 2026.^[20] In the area below the belvedere, a path dedicated to the Italian aviator Angelo D'Arrigo was recently built.^[21] It offers a panoramic view of the Gela plain.

Demographic evolution

Ethnic groups and foreign minorities

As of January 1, 2025, there were 694 foreigners residing in the municipality, representing 2.8% of the total population.^[22] The following are the largest national groups:^[23]

1. Romania: 381
2. Tunisia: 173
3. Morocco: 37

Education

Niscemi has a municipal library, named in memory of Mario Gori, born Mario Antonino Di Pasquale. Since 2006 located in Via IV Novembre in a 19th-century building. It houses approximately 16,000 cataloged volumes as well as a vast newspaper library.^[24]

The Civic Museum is housed within the former Convent of the Franciscan Friars Minor. It was born from an idea by Totò Ravalli. Its creation is the culmination of 30 years of active research and the collection of thousands of objects, thanks to the synergy between the Municipality of Niscemi, the Lions Club, the Environmental Education Center (CEA), the Superintendence for Cultural Heritage of Caltanissetta, Europe, and the generosity of private citizens. It was inaugurated on October 7, 2018.^[25]

The private library Angelo Marsiano contains a collection of approximately 4,000 volumes, notes, manuscripts, and documents that the heirs decided to make accessible to the public. The building sits right on the edge of the precipice created by the landslide, with part of it essentially suspended in mid-air: the first 350 books were recovered through a complex operation.^[26]