great-grandniece-in-law

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

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

great-great-great-grandniece

Sibling's great-great-great-granddaughter.

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

great-great-great-grandniece

Sibling's great-great-great-granddaughter.

great-great-great-grandniece.

co-grandniece-in-law

Spouse's grandnibling's wife.

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

co-grandniece-in-law

Spouse's grandnibling's wife.

co-grandniece-in-law.

5X-grandniece

Great-great-great-great-grandniece.

My 5X-grandniece is a good person.

grandniece-by-marriage

Spouse's grandniece.

My grandniece-by-marriage is a good person.