Sibling's great-granddaughter.
My great-great-niece is a good person.
Sibling's great-great-great-granddaughter.
My great-great-great-great-niece is a good person.
Half-first cousin’s granddaughter.
My half-first great-cousin-niece 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.