Nationality directory
Citizenship research guides.
These guides are educational. When you are ready to apply the question to your own family, start with the free preliminary screen.
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Europe
EU mobility and country-specific citizenship research.
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Canada
Historical status, descent, and documentary proof.
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Britain
Citizenship, registration, right of abode, and ancestry questions.
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Ireland
Relationship and registration timing.
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Germany
Historic nationality, migration, and restoration questions.
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The Americas
Canada, Mexico, and other country-specific family lines.
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For your family
Separate your status from partner and child questions.
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A second nationality
The practical choices behind another nationality.
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The difficult cases
Missing records, older ancestry, and historical-status problems.