Your sister's husband's sister's daughter might be called your brother-in-law's niece, although that is less specific than calling her your brother-in-law's sister's daughter.
There is no term in the English language for a relationship between you and that person. You are not considered to be related.
Your brothers ( or sisters ) daughter is your ( niece )
Your brother or sister's daughter is called 'your niece.'
They are sisters in law.
My brothers-in-law are my sisters' misters. I don't know which of the sisters' husbands he is.
If she is your sisters daughter then she is your neice :)
Well, it depends how close you are to your husbands family. If you really want to know they are cousins-in-law.
yes
spain
she would be your grandmals sisters sons daughter =)
She is your niece.
Its would be your neice
brother in law