The granddaughter-in-law of one's parent-in-law's sibling.
My first co-cousin-niece-in-law is a good person.
First cousin's great-granddaughter.
My first great-great-cousin-niece is a good girl.
Half-first cousin’s granddaughter.
My half-first great-cousin-niece is a good person.
Daughter of their maternal first cousin’s child with the paternal first cousin’s child or double-first cousin’s granddaughter.
My double-first great-cousin-niece is a good person.
Sesqui-first cousin’s granddaughter.
My sesqui-first great-cousin-niece is a good person.