Your grandmother's sister is your daughter's great great aunt. Your daughter is the great great niece of your grandmother's sister.
My ancestors
Your sister's daughter is your niece.
you will be his great great grand son/daughter..:)
First cousins twice removed.
The daughter of your mother's sister is your first cousin.
Your sister's daughter is your niece, so you are her aunt or her uncle.
Your daughter-in-laws sister. There is no relationship as you do not share a common ancestor.
Your mother's sister is your aunt and her daughter is your first cousin.
Your sister's daughter is your niece. Your niece's husband is not related to you.
Your Niece.
your second cousin
Your sister's daughter and your sister's brother are niece and uncle to each other. The daughter is the niece of the brother and the brother is uncle to the daughter.