Your daughter's grandfather's sister's son's brother+in+law is your which relation ?

Your

Daughter's

Grandfather's

Sister's

Son's

Brother in law

is your BROTHER IN LAW !!

What relation is your father's sister's brother in law's brother to you ?

What relation is your father's sister's niece's son to you ?

What relation is your mother's daughter's father's wife's sister to you ?

What relation is your mother's father's wife's husband to you ?

What relation is your cousin's mother's niece's brother to you ?

What relation is your aunt's daughter's father in law's son to you ?