French Nationality by descent or ancestry           (Jus Sanguinis)

Apply for French citizenship through descent or ancestry


You have ancestors who were French citizens.


You could be asked to submit a legal evidence of your French citizenship / fill in a French nationality certificate when :

- you apply for a French passport

- your partner applies for French citizenship by marriage (declaration)


We help you completing your French nationality certificate application form and gathering the necessary supporting documents to prove your lineage.

We help you to find French birth certificates, marriage certificates and death certificates of your ascents and complete your French genealogy.