Your sister's father's wife's daughter's aunt is your which relation ?

Your

Sister's

Father's

Wife's

Daughter's

Aunt

is your AUNT !!

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

What relation is your mother's husband's daughter's grandmother to you ?

What relation is your aunt's son's uncle's brother to you ?

What relation is your daughter's grandfather's son's nephew to you ?

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

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