Regardless of whether she has a daughter herself, your great uncle's daughter is your first cousin, once removed. Her daughter, if she has one, is your second cousin.
Your brother's daughter has a daughter? That is a great niece.
Your daughter's daughter is your granddaughter, and you would be her grandmother or grandfather.
Your sister's daughter is your niece.
Cousins
Your daughter's son is your other daughter's nephew and she is his aunt.
aphrodite was in a relationship with are they had 1 daughter.
Second cousins
your second cousin
2nd cousin
Your brother's daughter is your niece..and you are her AUNT.
She is your first cousin.
2nd cousin.