great-grandniece 

Sibling's great-granddaughter.

My great-grandniece is a good person.

great-grandniece by Hgcloziw November 23, 2019

great-grandniece 

Sibling's great-granddaughter.

great-grandniece.

great-grandniece by Simaduria July 26, 2024

great-grandniece-in-law 

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

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

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

great-grandniece-in-law 

1- Great-grandnibling's wife.
2- Spouse's great-grandniece.

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

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

great-grandniece-by-marriage

Spouse's great-grandniece.

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

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

great-grandniece-by-marriage-in-law

Spouse's great-grandnibling's wife.

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

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

great-great-grandniece 

Sibling's great-great-granddaughter.

My great-great-grandniece is a good girl.

great-great-grandniece by Hgcloziw November 23, 2019