great-great-great-grandmother-in-law 

Spouse's great-great-great-grandmother.

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

great-great-great-grandmother-in-law by JAMP12 September 21, 2021

great-great-great-granddaughter-in-law 

Great-great-great-grandson's wife.

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

great-great-great-granddaughter-in-law by JAMP12 September 21, 2021

great-great-great-grandson-in-law 

Great-great-great-granddaughter's husband.

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

great-great-great-grandson-in-law by JAMP12 September 21, 2021

first-cousin-thrice-removed-in-law 

1- First-cousin-thrice-removed's spouse.
2- Spouse's first-cousin-thrice-removed.

My first-cousin-thrice-removed-in-law is a good person.

first-cousin-thrice-removed-in-law by JAMP12 September 21, 2021

second-cousin-twice-removed-in-law

1- Second-cousin-twice-removed's spouse.
2- Spouse's second-cousin-twice-removed.

My second-cousin-twice-removed-in-law is a good person.

second-cousin-twice-removed-in-law by JAMP12 September 21, 2021

third-cousin-once-removed-in-law 

1- Third-cousin-once-removed's spouse.
2- Spouse's third-cousin-once-removed.

My third-cousin-once-removed-in-law is a good person.

third-cousin-once-removed-in-law by JAMP12 September 21, 2021

co-first-cousin-once-removed-in-law 

Spouse's first-cousin-once-removed's spouse.

My co-first-cousin-once-removed-in-law is a good person.

co-first-cousin-once-removed-in-law by JAMP12 September 21, 2021