|Città di Guastalla|
|Province||Reggio Emilia (RE)|
|Frazioni||Pieve, San Giacomo, San Giorgio, San Girolamo, San Martino, San Rocco, Tagliata|
|• Mayor||Giorgio Benaglia|
|• Total||52.5 km2 (20.3 sq mi)|
|Elevation||24 m (79 ft)|
|Population (31 September 2009)|
|• Density||290/km2 (750/sq mi)|
|Time zone||CET (UTC+1)|
|• Summer (DST)||CEST (UTC+2)|
|Patron saint||St. Francis|
|Saint day||October 4|
The area of Guastalla was probably settled by Etruscans as early as the 7th century BCE, but the name of the city is mentioned for the first time in 864 CE. Of Lombard origin, the city was ruled by the Torelli family from 1406 to 1539, when it became the capital of a duchy under the Gonzaga family and housed artists like Guercino and Torquato Tasso.
In 1748, by the Treaty of Aix-la-Chapelle, the city became part of the Duchy of Parma, Piacenza e Guastalla, to which it belonged until 1847, when it was inherited by the Duke of Modena. Since the unification of Italy in 1861 Guastalla has been a part of Italy.
As a titular Duke of Modena, the current holder of the title of "Duke of Guastalla" would be Prince Lorenz of Belgium, Archduke of Austria-Este.
Smalterie Metallurgiche Emiliane Guastall (Smeg), a manufacturer of world famous designer domestic appliances, was founded and still has its headquarters in Guastalla. Vittorio Bertazzoni founded the company in the village in 1948 and the company still remains in the private ownership of the Bertazzoni family. Smeg is best known for its FAB range of 1950s-style, retro refrigerators with curved corners in a variety of non-traditional colours and patterns. The company, which began as a metal enamelling factory, also manufactures dishwashers, washing machines and other appliances.
- The Cathedral (16th century) by Francesco da Volterra.
- The Ducal Palace (1567).
- The Civic Theatre Ruggero Ruggeri (1671).
- The Town Hall.
- The octagonal Oratory of Madonna della Concezione.
- The church of Santa Maria dei Servi, designed by Francesco da Volterra. Noteworthy in the interior is a Deposition, canvas by Giuseppe Maria Crespi.
- The Civic Tower (18th century), in the location where once was the Spanish Castle
In the Guastalla communal territory is also home to:
- The Romanesque Oratory of St. George (probably from the 9th century).
- The Basilica of St. Peter at Pieve di Guastalla, which was seat of two Roman Catholic councils. It houses an ancient baptismal font (9th century) and painted terracotta portraying the Madonna with Child, attributed to Guido Mazzoni.
- Ingrid Alberini, known as In-Grid. Italian pop-dance artist, known for the 2003 global dance hit Tu es foutu or "You Promised Me", born in Guastalla in 1978 and grew up in this town.
- Vittorio Bertazzoni founded Smalterie Metallurgiche Emiliane Guastall (Smeg) in the village in 1948 as a metal enamelling factory.