Spouse's great-grandnephew's wife.
My co-great-grandniece-in-law is a good person.
Spouse's great-grandnibling's wife.
My co-great-grandniece-in-law is a good person.
Spouse's great-great-grandnephew's wife.
My co-great-great-grandniece-in-law is a good person.
Spouse's great-great-grandnibling's wife.
My co-great-great-grandniece-in-law is a good person.