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Mother Father Brother Sister was created on 1998-06-24.
Mother's brother: Mama Father's brother or Mother's sister's husband or Father's sister's husband: Kaka
You don't call your brother's sister your aunt. Your brother's sister is your sister, or you. Your aunt is the sister of your mother or father.
Your uncle is the brother of your mother or your father - or the husband of the sister of your mother or your father.
Yes, she had a mother, father and a brother and sister.
yes
She is his sister-in-law.
Your father's brother is your uncle. English does not have different names for a father's elder and younger brother. If you are a boy, you are your uncle's nephew; if you are a girl, you are his niece.
DNA testing can determine if your brother, sister, father or mother are your true biological ones.
Genes.
Your grandfather's brother's son is your first cousin, once removed. His mother is your great aunt (or grand aunt), but her sister is not related to you.
Mother - Madre Father - Padre Sister - Hermana Brother - Hermano Aunt - Tia Uncle - Tio