1C1R-in-law
1- First-cousin-once-removed's spouse.
2- Spouse's first-cousin-once-removed.
2- Spouse's first-cousin-once-removed.
My 1C1R-in-law is a good person.
co-1C1R-in-law
Spouse's first-cousin-once-removed's spouse.
My co-1C1R-in-law is a good person.