Spessa

The Versa is a right tributary of the river Po which runs through the Province of Pavia in northern Italy. It flows into the Po near Portalbera, southeast of the city Pavia.

Costa de' Nobili is a comune (municipality) in the Province of Pavia in the Italian region Lombardy, located about 40 km (25 mi) southeast of Milan and about 20 km (12 mi) southeast of Pavia. Costa de' Nobili borders the following municipalities: Corteolona e Genzone, Pieve Porto Morone, San Zenone al Po, Santa Cristina e Bissone, Spessa, Torre de' Negri, Zerbo.

Torre de' Negri is a comune (municipality) in the Province of Pavia in the Italian region Lombardy, located about 40 km southeast of Milan and about 15 km east of Pavia. Torre de' Negri borders the following municipalities: Belgioioso, Corteolona e Genzone, Costa de' Nobili, Spessa.

Corteolona is a frazione of the comune (municipality) of Corteolona e Genzone in the Province of Pavia in the Italian region Lombardy, located about 40 km southeast of Milan and about 15 km east of Pavia. It was a separate comune until 2016.

Corteolona e Genzone is a comune (municipality) in the Province of Pavia in the Italian region Lombardy. It was established on 1 January 2016 by the merger of the municipalities of Corteolona and Genzone.

Portalbera is a comune (municipality) in the Province of Pavia in the Italian region Lombardy, located about 40 km southeast of Milan and about 15 km southeast of Pavia. As of 31 December 2004, it had a population of 1,434 and an area of 4.7 km².The municipality of Portalbera contains the frazione (subdivision) San Pietro. Portalbera borders the following municipalities: Arena Po, Spessa, Stradella.

Zerbo is a comune (municipality) in the Province of Pavia in the Italian region Lombardy, located about 45 km southeast of Milan and about 20 km southeast of Pavia. As of 31 December 2004, it had a population of 465 and an area of 6.4 km².Zerbo borders the following municipalities: Arena Po, Costa de' Nobili, Pieve Porto Morone, San Zenone al Po.

Bosnasco is a comune (municipality) in the Province of Pavia in the Italian region Lombardy, located about 45 km southeast of Milan and about 20 km southeast of Pavia. As of 31 December 2004, it had a population of 616 and an area of 4.8 km².Bosnasco borders the following municipalities: Arena Po, Castel San Giovanni, Montù Beccaria, San Damiano al Colle, Zenevredo.

San Damiano al Colle is a comune (municipality) in the Province of Pavia in the Italian region Lombardy, located about 45 km southeast of Milan and about 20 km southeast of Pavia. As of 31 December 2004, it had a population of 767 and an area of 6.4 km².San Damiano al Colle borders the following municipalities: Bosnasco, Castel San Giovanni, Montù Beccaria, Rovescala.

San Zenone al Po is a comune in the province of Pavia, Lombardy, Italy.

Arena Po (Lombard: Reina) is a comune (municipality) in the Province of Pavia in the Italian region of Lombardy, located about 45 km southeast of Milan and about 20 km southeast of Pavia. As of 31 December 2004, it had a population of 1,595 and an area of 22.3 km2.Arena Po borders the following municipalities: Bosnasco, Castel San Giovanni, Pieve Porto Morone, Portalbera, San Zenone al Po, Spessa, Stradella, Zenevredo, and Zerbo. Composer Giovanni Quirici was born in the comune.

Belgioioso or Belgiojoso (Italian: [beldʒoˈjoːzo, -oːso]; Lombard: Belgios [belˈdʒuːs] or Belgiojos [ˌbɛldʒuˈjuːs]) is a town and comune in the Province of Pavia, region of Lombardy (northern Italy), with a population of 6,233 (2017).It is 12 km east of the city of Pavia, between the Olona River and the Po River. Due to its geographical location, Belgioioso has become one of the southern suburbs of the city of Milan. Belgioioso is noted for its medieval castle, the seat of the Belgioioso family. Francis I of France was held there after the Battle of Pavia.