What is my aunt's sister in-law to me?

Answer 1

Nothing. Your not the one who married into the family your sister is so you would call them your sisters in

Answer 2

The mother's sister's brother is also the mother's brother. If it is an aunt to a brother or sister, it is an aunt to you as well.

Answer 3

You not blood related.

But however you may think of her as other Aunt if you wish to.

Answer 4

your great-great grandfather

Answer 5

Yes, your Dad's sister is your Aunt.

Answer 6

Ur aunt sister in law could be ur aunt or aunty in law once remove