The English language has no relationship name for the wife of your great niece or great nephew.
Hera was his wifes name. That was also his sister. He had a lot of children
While generally referred to as a Sister-in-law, there is no relationship.
Heracles' wife was Deianeira, daughter of Dionysos and Althaia, and sister of Meleagros.
Your father's sister is your Aunt.
Your sister in law is your husband's sister or your brother's wife.
Probably your niece-in-law.
Yes.
Yes
Niece
what is eric dovers wifes name?
Sister-in-law. same as your brother's wife.