The foreign-born spouse of an Italian citizen residing abroad may apply for Italian citizenship through marriage three years after it was celebrated. This term is reduced to a half in the case of children born to or adopted by both spouses.
The applicant must register on the portal of the Ministry of the Interior called ALI, at the following link
After logging in, you will be given access to the online procedure to apply for Italian citizenship.
The diplomatic or consular delegation territorially competent for the applicant’s place of residence will verify the documentation uploaded online by the applicant before accepting the application.
Once the application is accepted, the applicant will be summoned to the office to be identified and to deposit for verification the original documents uploaded online as well as any other required document. For more information, please consult the “Citizenship” page
The Ministry of the Interior is the competent Authority to define the administrative procedure whereby to award Italian citizenship. Once the application is accepted, it will be assigned an identification code (K10/C – followed by a number) with which it will also be possible to access the online consultation service on the state of progress of the application by accessing the ALI portal with the credentials assigned at the time of registering to file the application.
You must contact the Italian town where they were born. The Italian Consulates generally provide request forms on line. If there were no registries in existence at the time of your ancestors’ birth, you will have to submit a parish baptismal certificate, with the authentication of the pastor’s signature by the authorised bishop’s office, along with the response from the town hall confirming the non-existence of a registry office on the date in question.