Your aunt's nephew's father's son's grandfather is your which relation ?

Your

Aunt's

Nephew's

Father's

Son's

Grandfather

is your GRANDUNCLE !!

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

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

What relation is your grandmother's grandson's mother's father to you ?

What relation is your grandmother's grandson's sister's son to you ?

What relation is your grandmother's grandson's sister's father to you ?

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