Sibling's great-great-great-grandson.
My great-great-great-grandnephew is a good person.
by Gtopql November 23, 2019

Half-sibling's great-great-great-grandson.
My half-great-great-great-grandnephew is a good person.
by Seo48787 October 28, 2021

Spouse's great-grandnephew.
My great-grandnephew-by-marriage is a good person.
by NSBC968755 February 25, 2023

Half-sibling's great-great-grandson.
My half-great-great-grandnephew is a good person.
by Rwopazaq November 24, 2019

Spouse's great-grandniece's husband.
My co-great-grandnephew-in-law is a good person.
by JAMP12 September 21, 2021

My great-great-grandnephew-in-law is a good person.
by JAMP12 September 21, 2021
