co-grandniece-in-law

The granddaughter-in-law of one's spouse's sibling.

My co-grandniece-in-law is a good person.

co-grandniece-in-law

Spouse's grandnephew's wife.

My co-grandniece-in-law is a good person.

half-grandniece

Half-sibling's granddaughter.

My half-grandniece is a good girl.

half-grandniece

Half-sibling's granddaughter.

Half-grandniece.

half-great-grandniece

Half-sibling's great-granddaughter.

My half-great-grandniece is a good person.

10X-grandniece

Great-great-great-great-great-great-great-great-great-grandniece.

My 10X-grandniece is a good person.

grandniece

Sibling's granddaughter.

My grandniece is a good person.