French & English Cousin Relationships

Genealogy uses different systems in English and French to describe cousin relationships.

English uses a “removed” system based on generational distance, while French terminology is historically rooted in kinship proximity.

This page provides a simple visual guide to the most common terms, making it easier to move between both languages when researching family history.

First cousin

English: First cousin
French: cousin germain
🌿 Meaning: You share the same grandparents and are in the same generation

Second cousin

English: Second cousin
French: cousin au second degré (or petit-cousin informally)
🌿 Meaning: You share the same great-grandparents and are in the same generation

Third cousin

English: Third cousin
French: cousin au troisième degré
🌿 Meaning: You share the same great-great-grandparents and are in the same generation

Then comes “removed”

First cousin once removed

Same family line, BUT:

  • one person is one generation higher/lower

English: First cousin once removed
French: Cousin issu de germain
🌿 Meaning: one generation apart

Example:
* your cousin’s child
* your parent’s cousin

So what is:

“5th cousin 8 times removed”?

English: 5th cousin 8 times removed
French: Cousin au cinquième (5ème) degré, éloigné au huitième (8ème) degré

It means:

  • you share the same 4x-great-grandparents (that makes you 5th cousins)
  • BUT one person is 8 generations above or below the other

Which usually happens when:

  • comparing very distant relatives,
  • nobility/royalty trees,
  • or giant DNA trees on genealogy websites.

The logic behind complicated

  • The cousin number tells you which shared ancestors you have.
  • The removed number tells you the difference in generations between the two people.

Cousin number = shared ancestor level
Removed = generation difference

📌 QUICK SUMMARY

Key French Equivalents

  • First cousin → cousin germain → same grandparents
  • Second cousin → cousin au second degré → same great-grandparents
  • Third cousin → cousin au troisième degré → same great-great-grandparents
  • First cousin once removed → cousin issu de germain → your cousin’s child OR your parent’s cousin