2nd cousin.
The grandchildren of any of your great uncles and great aunts are your second cousins.
your uncles daughter would be your cousin
your uncles daughter would be your cousin
Your uncles daughter would be your cousin.
Great Niece.
The relationship to you would be your cousin !
Cousine
It's called the daughter-in-law.
She would be your great grandmother
my cousons sisters boyfriens dads nieces grandma's favorite sons dogwalkers mothers friends mum twice removed uncles daughter
First answer:that would be your second cousin. It is legal in the united states to marry them due to genetics Second answer:Your question is: "What is the relationship of your uncles son daughter to you?" If you are asking, "What is the relationship of your uncle's son and daughter to you?" they are your first cousins.If you are asking, "What is the relationship of your uncle's son's daughter to you?" she is your first cousin once removed.
Your brother's daughter's daughter is your great niece.