Half-sibling's great-granddaughter.
half-great-great-niece.
Spouse's half-nibling's wife.
My half-co-niece-in-law is a good person.
half-co-niece-in-law.
Spouse's niece.
My niece-by-marriage is a good person.
Niece-in-law (only spouse's niece).
Half-sibling's daughter.
My half-niece is a good person.
Half-niece.