Different spellings of surnames are one of the most common problems in Portuguese citizenship applications. Over decades, the same surname was written in different ways in Brazil and in Portugal. Sousa became Souza. Manoel stayed Manoel where Portugal wrote Manuel. Particles like "de" or "da" appeared on one side and disappeared on the other.
The IRN has to be sure that every name in the chain of documents refers to the same person. If the surname on the grandparent's Portuguese record does not match the surname on the parent's Brazilian certificate, the IRN can issue a formal request asking for further proof or an explanation. That does not stop the application, but it delays it.
The most common discrepancies
- Sousa / Souza: a spelling change in the move to Brazil
- Manuel / Manoel: a variation still found in old documents
- The particles "de", "da", "do", "dos": present in one record and missing from another
- A shortened surname: a grandfather registered with three surnames in Portugal, his child registered with two in Brazil
Small phonetic variations rarely trigger a request. Anthônio and Antônio are clearly the same name. The problem starts when the difference is big enough to raise doubt about whether the records describe the same person.
Compare the documents before you file
Lay the documents in the chain side by side before you submit the application. Compare your grandparent's full name on the Portuguese record with the name on your parent's Brazilian birth certificate. Compare your parent's name with your own birth record. Any difference you can see is a difference the IRN will see too.
When to correct it at the Brazilian registry office
If the discrepancy is on a Brazilian certificate, Law no. 13,484 of 26 September 2017 allows an administrative correction directly at the registry office, without going to court. The registrar can correct obvious spelling errors on their own authority, without hearing the Public Prosecutor. If the case needs more proof or is more complex, the office sends it to the courts.
For the administrative correction, bring to the registry office the document that proves the correct spelling of the surname. If the surname comes from the Portuguese side of the family, the grandparent's birth record in Portugal serves as proof. The office reviews the request and decides whether the error is simple enough for the administrative route.
The birth record in Portugal is the reference for the surname on the Portuguese side of the family. If your grandfather always used "Sousa" in Portugal, that is the surname on the record. The question is what was registered in Brazil in the next generation.
Ana, from Recife, the granddaughter of a man born in Guimarães, noticed when comparing the documents that her grandfather's Portuguese record said "Sousa", but her mother's Brazilian birth certificate said "Souza". Before filing, Ana took her mother's certificate to the registry office with the Portuguese record as proof of the original spelling. The office opened the administrative process and corrected the certificate within a few weeks, with no lawyer needed.
Linha Reta drafts the declaration of intent and the complete list of documents for your case. You find and fix the discrepancies before filing, and you file the application with the IRN.