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The concept of Polish citizenship ius sanguinis (Latin for “right of blood”) is central to understanding how individuals with Polish ancestry can claim citizenship, even generations after their ancestors left Poland. According to Polish law, citizenship is transmitted through descent, not place of birth.

A Free Polish citizenship consultation isn’t just a convenient starting point—it’s the smartest, most strategic move you can make when beginning your journey toward reclaiming or obtaining Polish citizenship. If you’re one of the millions with Polish ancestry or ties to Poland, you might qualify—yet the eligibility criteria, documentation requirements, and application procedures can be complex and nuanced.

If you’ve been holding onto your Polish grandfather’s birth certificate and wondering whether it could be your golden ticket to citizenship, you’re not alone. For many descendants of Polish emigrants, particularly in the U.S., Canada, the U.K., and Australia, the phrase “Polish citizenship via grandfather’s Polish birth certificate” represents not just a piece of family history, but a potential pathway to reclaiming European citizenship.

Polish citizenship is passed by “the right of blood”. If one of the parents holds Polish citizenship (or is a person of Polish descent), it is passed to the child irrespective of whether the child was born in Poland or abroad.
It also applies to people born in countries with the “right of soil” e.g. USA. If you were born in the USA to at least one Polish parent (or a parent of Polish descent – to your Polish grandparents), you can claim Polish citizenship despite the fact you acquired US citizenship at your birth.

Once you receive your Polish citizenship, you not only become a Polish citizen but in addition to that, you also become a European citizen. Why do we mention it? Being able to call yourself a European citizen and having easy access to the EU is the major benefit of Polish citizenship.

The notion of Polish citizenship has no statutory definition. In doctrine it is defined as a certain kind of legal bond between a natural person and a state, which consists in the person’s belonging to that state. It is expressed by the state providing rights for citizens and presenting them with obligations, which exist to indicate the ways of acquiring and retaining citizenship and the related rights or lack thereof.

“Every person in the modern world is a member of two basic communities: the family and the whole society organized into a state. From this belonging derive certain human characteristics, which determine his position in each of these communities and allow to distinguish him from other people” (J.Ignatowicz).

Have you ever wondered how it would be to freely reside in Europe? Do you know that by becoming a Polish citizen you automatically become a citizen of the European Union? Once you get your Polish passport, you get free access to Europe and the European job market as a Polish passport equals the passport of the European Union.

If you have Polish ancestry or Polish parents or grandparents, you may be eligible to obtain Polish citizenship by descent and apply for a Polish passport.
In the process of Polish citizenship confirmation, you need to prove you are of Polish descent with formal and legally valid evidence, confirm kinship towards his or her Polish ancestor and prove that Polish citizenship was not lost by any of his family members and passed down the line all the way to you via ‘the right of blood’.