great-grandnephew 

Sibling's great-grandson.

My great-grandnephew is a good person.

great-grandnephew by Hgcloziw November 23, 2019

great-grandnephew 

Sibling's great-grandson.

great-grandnephew.

great-grandnephew by Simaduria July 26, 2024

great-grandnephew-in-law

1- Great-grandniece's husband.
2- Spouse's great-grandnephew.

My great-grandnephew-in-law is a good person.

great-grandnephew-in-law by Gerald128 April 7, 2021

great-grandnephew-in-law

1- Great-grandnibling's husband.
2- Spouse's great-grandnephew.

My great-grandnephew-in-law is a good person.

great-grandnephew-in-law by Wonbig October 13, 2021

great-grandnephew-by-marriage 

Spouse's great-grandnephew.

My great-grandnephew-by-marriage is a good person.

great-grandnephew-by-marriage by NSBC968755 February 25, 2023

great-grandnephew-by-marriage-in-law 

Spouse's great-grandnibling's husband.

My great-grandnephew-by-marriage-in-law is a good person.

great-grandnephew-by-marriage-in-law by NSBC968755 February 25, 2023

great-great-great-grandnephew

Sibling's great-great-great-grandson.

My great-great-great-grandnephew is a good person.

great-great-great-grandnephew by Gtopql November 23, 2019