Great-great-grandparent's female first cousin.
My great-great-great-cousin-aunt is a good person.
Grandparent’s female half-first cousin.
My half-great-cousin-aunt is a good person.
Great-grandparent's female first cousin.
My first great-great-cousin-aunt is a good person.
1. The sister of one's stepgrandparent.
2. The stepsister of one's grandparent.
My step-great-aunt is a good person.