Italy
Lombardia
Pavia
Siziano is a comune in the provincia of Pavia, Lombardia with a population of 6,810 as of 2025. The comune was previously known as Guignano.
Contact
To request vital records from the anagrafe (records office), write to the PEC address or email below. Include the full name, approximate date, and record type in Italian.
Map
Historical Names
Guignano→Siziano
Changed on September 20, 1863
Località
Each Italian comune is divided into località (localities), which include centri abitati (populated centers) and nuclei abitati (smaller settlements).
Centri abitati
AltitudePopulation- Siziano93m5,701
- Gnignano92m33
Nuclei abitati
AltitudePopulation- Campomorto93m200
- Cascinetta91m175
- Casatico91m54
- Bonate89m0
Population and Migration
This chart shows annual resident population and international migration (2001 to present). Not all data is available for every period, so gaps are normal.
The population has grown 309% since 1861. Since 2001, net international immigration has added the equivalent of 9% of the current population.
Cittadinanza per discendenza
Could a line from Siziano qualify for Italian citizenship?
If your ancestor was born in Siziano, Italy may recognize you as a citizen under jure sanguinis (citizenship by descent).
The birthplace alone does not decide it. Each generation between that ancestor and you does: who naturalized, and when. Since the 2025 law, the number of generations matters too.
The checker goes back through your line one generation at a time. It is not legal advice, and it does not search for records.
Check your lineItalian-born ancestor
Your ancestor from Siziano
Born in Siziano (PV), Italy
Each generation between
Name and dates
Did this person naturalize before their child was born?
You
A likely outcome
and the documents your line would need
Not ready to start? Get an email when the citizenship rules change.
Notable People
People born in Siziano.