You granddaughter is a great great niece of your aunt. Your aunt is your granddaughter's great great aunt.
You are your Aunt's niece, if you are female.
Your Aunt's niece may also be your sister, whether you are male or female.
Your Aunt's niece could also be your first cousin, if she is the daughter of a sibling of your aunt who is not your parent.
You Aunt also can have nieces who are not related to you. They are the daughters of her husband's siblings.
Your first cousin's aunt could be your mother or your aunt, if your cousin's aunt is on your side of the family tree. However, your first cousin could have aunts who are the sisters of her parent who is not the sibling of one of your parents. Then you are not related to the cousin's aunt.
That depends.
Your great aunt is the aunt of one of your parents, which means she is the sister of one of your grandparents. Her nephew is the son of her sibling.
If she is related maternally (on your mother's side) then her nephew would have to be your mother's first cousin, aka your second cousin.
But, if she is related paternally (on your father's side) her nephew could either be your father, or your second cousin.
In addition, your great aunt may have nephews who are the children of siblings of her husband. Those nephews are not related to you.
Your nephew is not related to your husband's niece. However, your nephew is also your husband's nephew and his niece is also your niece.
Your aunt's niece is your First Cousin or your sister if you have the same parents.
Your nephew and your granddaughter are first cousins once removed to each other.
Your nephew and your children are first cousins.
Your aunt is your granddaughter's great aunt. Your granddaughter is your aunt's great niece.
Your nephew is your aunt's grandnephew and she is his great-aunt.
You are First Cousins
They would be first cousins once removed. Your great aunt's children are the first cousins of your parent.
You would be your childrens second cousins uncle or aunt, i think... :)
Your aunt's son and her niece are first cousins to each other.
a nephew's kid to his aunt's kids would be their cousin.
Your son and your aunt's child are first cousins, so your son and your aunts grandson (the son of your aunt's child) are first cousins, once removed.
They would be first cousins.
3rd cousins
Your aunt's daughter is your first cousin, as is your aunt's son.
Aunt or uncle and they nephew and niece, there's not other relationship term that can fit that relationship unless in a mother tongue.
Your aunt's child, son or daughter, is your First Cousin. The same is true for your uncle's children.
Your aunt's children are your first cousins and theirchildren are your first cousins, once removed.Your children and the children of your first cousins are second cousins to each other.