I think they are you cousins once removed
Your cousin. You are that person's second cousin.
The relation of the mother;s sister to daughter is niece-aunts.
There is 2 answers your mothers brothers children or your dads sister;"s children
Your cousin's cousin could either be your cousin or no relation at all.
He is of relation as a cousin-in-law.
Well, your cousin's brother is also your cousin, and a cousin's son is also your cousin.
Your mothers sisters Granddaughter is your second cousin
They are your cousin-in-law.
Second cousin
Cousin in Law
Your cousin-in-law.
still your cousin