Great-great-great-great-great-great-grandniece.
My 7X-grandniece is a good person.
1. The granddaughter-in-law of one's sibling.
2. The granddaughter of one's spouse's sibling.
My grandniece-in-law is a good person.
1- Grandnephew's wife.
2- Spouse's grandniece.
My grandniece-in-law is a good person.
1- Grandnibling's wife.
2- Spouse's grandniece.
My grandniece-in-law is a good person.
1- Grandnibling's wife.
2- Spouse's grandniece.
grandniece-in-law.
Half-sibling's great-great-granddaughter.
My half-great-great-grandniece is a good person.