Your 1st cousin's granddaughter would be your daughter's niece.
Your sister's daughter and your daughter are first cousins to each other. Your sister's daughter's daughter (her granddaughter) is first cousin once removed to you daughter. Your granddaughter and your sister's granddaughter are second cousins to each other.
Your child and your sister's daughter are first cousins. Your grand child and your sister's daughter are first cousins, once removed.
Your husband's first cousin's child and your daughter are second cousins to each other.Your husband's first cousin's granddaughter and your daughter are second cousins, once removed, to each other.Your husband's first cousin's granddaughter and yourgrandchild are third cousins to each other.
Your daughter and your first cousin's daughter are second cousins to each other. Your daughter and your first cousin's granddaughter are second cousins, once removed, to each other. Your granddaughter and your first cousin's granddaughter are third cousins to each other.
Your brother's daughter and your daughter are first cousins to each other. Your brother's daughter and your daughter's daughter (your granddaughter) are first cousins, once removed, to each other.
Your first cousin's daughter is first cousin once removed to your grandson, and he to her. Your second cousin's daughter is second cousin once removed to your grandson, and he to her.
the first cousin and daughter would be second cousins.
Your child and your sister's daughter are first cousins. Your grand child and your sister's daughter are first cousins, once removed.
Your granddaughter and your first cousin are first cousins, twice removed, to each other.
Your niece and your son or daughter are first cousins. That would make your niece and your grandchild first cousins once removed. Your niece's child and your grandchild are second cousins.
Your son and your sisters child are first cousins. The granddaughter is out of synch by a generation. That will make them first cousins once removed.
Your daughter and your niece are first cousins. Your daughter and your niece's daughter are first cousins, once removed.