Your sister-in-law is either the wife of your brother or the sister of your wife.
A niece of the sister of your wife may be your daughter. If not she could be your wife's niece too, as the daughter of one of your wife's other siblings. A niece of the sister of your wife could also be the daughter of your wife's sister's husband. In that case, she is not related to you.
The niece of your brother's wife could also be yourdaughter or the daughter of another of your siblings, since your brother's wife is your daughter's aunt. If the niece of your brother's wide is the daughter of the wife's sibling, then she is not related to you.
Your cousin's daughter may be someone's niece but she is not your niece.
Your first cousin's daughter is your first cousin, once removed.
Your second cousins' daughter is your second cousin, once removed.
Yes, your brother's or sister's daughter is your niece. If you are married, your spouse's brother's or sister's daughter is also your niece.
Well im pretty sure if its your sister its goin to be your niece.
The daughter of your niece or nephew is your grandniece. "Grand" because she is the GRANDdaughter of your brother or sister.
Your niece and your daughter are first cousins. Your niece's daughter and your daughter are first cousins, once removed.
Your niece and your daughter are first cousins. Your daughter and the daughter of your niece are first Cousins, once removed.
Your daughter and your niece are first cousins. Your daughter than your niece's son are first cousin's once removed. Your daughter's child and your niece's child are second cousins to each other.
Your daughter and your niece are first cousins Your daughter and your great grand niece are first cousins, twice removed.
Your great great niece is the granddaughter of your niece or nephew. Your daughter and your niece or nephew are first cousins. Your daughter and your great great niece are first cousins, twice removed.
Your daughter and your niece are first cousins. Your daughter and your niece's daughter are first cousins, once removed.
Your daughter and your niece's daughter are first cousins, once removed.
Your niece and your daughter are first cousins to each other.
You and your mother's niece are first cousins to each other, so your and the niece's daughter are fist cousins, once removed.
Your son and your niece are first cousins. Her daughter and your son are first cousins, once removed.
Your daughter and your niece are first cousins. Your daughter than your niece's son are first cousin's once removed. Your daughter's child and your niece's child are second cousins to each other.
cousins