Your grandmother's grandson's sister's mother's niece is your which relation ?

Your

Grandmother's

Grandson's

Sister's

Mother's

Niece

is your COUSIN !!

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

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

What relation is your aunt's niece's uncle's daughter to you ?

What relation is your sister's aunt's husband's daughter to you ?

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

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