Your mothers sister is your Aunt
Aunt Aunty Auntie
The relation of the mother;s sister to daughter is niece-aunts.
They are half brother and sister, they have the same father but different mothers.
There is 2 answers your mothers brothers children or your dads sister;"s children
Your mother's sister's husband's sister is your aunt's sister-in-law, but is not related to you. Here's why: Your mother's sister is your aunt. The sister of a woman's husband would be her sister-in-law. In this case the woman is your aunt. So your mother's sister's husband's sister would be your aunt's sister-in-law.
Real sister, half sister, or step sister
sister in law.
Your sister's sister is your sister.
uncle
brother
the relation is that person is either your half brother or half sister. 1/2 brother or sisiter
Her sister was named Aga.