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Trezzo sull'Adda

Trezzo sull'Adda
Comune
Città di Trezzo sull'Adda
A small silver hatchback going around a roundabout in the foreground with a two-story tile-roofed building behind it. On the left side of a street leading into the roundabout from the background is brick campanile rising against a clear blue sky. There are signs in Italian and a crosswalk just behind the roundabout.
Piazza Nazionale and Chiesa Santi Gervasio e Protasio
Coat of arms of Trezzo sull'Adda
Coat of arms
Trezzo sull'Adda is located in Italy
Trezzo sull'Adda
Trezzo sull'Adda
Location of Trezzo sull'Adda in Italy
Coordinates: 45°36′N 9°31′E / 45.600°N 9.517°E / 45.600; 9.517Coordinates: 45°36′N 9°31′E / 45.600°N 9.517°E / 45.600; 9.517
Country Italy
Region Lombardy
Province / Metropolitan city Milan (MI)
Frazioni Cascina Figini, Concesa
Government
 • Mayor Danilo Villa
Area
 • Total 12.8 km2 (4.9 sq mi)
Elevation 187 m (614 ft)
Population (30 November 2014)
 • Total 12,178
 • Density 950/km2 (2,500/sq mi)
Demonym(s) Trezzesi
Time zone CET (UTC+1)
 • Summer (DST) CEST (UTC+2)
Postal code 20056
Dialing code 02
Patron saint Saint Cajetan
Saint day August 7
Website Official website

Trezzo sull'Adda is a comune (municipality) in the Metropolitan City of Milan in the Italian region Lombardy, located about 30 kilometres (19 mi) northeast of Milan on the Adda River.

The Naviglio Martesana canal starts from the Adda in Trezzo's territory.

Trezzo sull'Adda borders the following municipalities: Cornate d'Adda, Bottanuco, Capriate San Gervasio, Busnago, Grezzago, Vaprio d'Adda.

Trezzo received the honorary title of city with a presidential decree on 8 July 2008.

Trezzo's main attraction is the massive castle which belonged to the Visconti family in the 14th century. Protected by the Adda on two sides, it had a 42-metre (138 ft) high square tower on the third one. Its fortified bridge (see Trezzo sull'Adda Bridge) was 72 metres (236 ft) long, the longest bridge span for several centuries, built on three different levels, passing 25 metres (82 ft) over the waters.

Due to its strategic position, the castle was contested first by Emperor Frederick Barbarossa and Milan, in the 12th century, and later by the Visconti and the Torriani families. The castle was destroyed or burnt several times, but was rebuilt on each occasion. The last reconstruction dates from 1370. It was commissioned by Bernabò Visconti, who was later imprisoned there until his death.

On 23 October 1404, the castle was captured by Paolo Colleoni, father of the important condottiere Bartolomeo. The Visconti general Francesco Bussone recaptured it, partially demolishing it and starting its decline. In the 19th century it was used as a quarry for the construction of the Arena di Milano.


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