Sibling's great-great-great-granddaughter.
My great-great-great-grandniece is a good person.
by Gtopql November 23, 2019
Get the great-great-great-grandniecemug. 
Get the great-great-great-grandniecemug. Half-sibling's great-great-great-granddaughter.
My half-great-great-great-grandniece is a good person.
by Seo48787 October 28, 2021
Get the half-great-great-great-grandniecemug.