Bonjour,
2. Your sister's daughter is your niece
3. Your father's mother is your grandfather
4. Your mother's sister is your aunt
5. Your brother's son is your nephew
6. Your father's brother is your uncle
7. Your uncle's son is your cousin
8. Your aunt's daughter is your cousin
9. Your father's wife is your mother
10. Your uncle's father is your grandfather.
j’espère avoir pu t’aider.