The son-in-law of one's grandparent-in-law's sibling.
My first co-cousin-uncle-in-law is a good person.
The child-in-law of one's parent-in-law's sibling.
My first co-cousin-in-law is a good person.
The granddaughter-in-law of one's parent-in-law's sibling.
My first co-cousin-niece-in-law is a good person.
Spouse's first-cousin-twice-removed's spouse.
My co-first-cousin-twice-removed-in-law is a good person.
Spouse's first-cousin-thrice-removed's spouse.
My co-first-cousin-thrice-removed-in-law is a good person.
The grandchild-in-law of one's parent-in-law's sibling.
My first co-cousin-nibling-in-law is a good person.