To your sister's daughter you are an aunt (or uncle) and she is your niece. To your niece's daughter ( your sister's granddaughter) you are a great-aunt (or great-uncle) and she is your grand-niece.
Your sister's daughters are your neices. You are their aunt or uncle.
They were both daughters of Zeus, and so sisters.
What family members your is fathers mothers daughters sons sisters
Medusa and her two sisters were daughters of Phorcys and Ceto.
She is your niece.
She is your niece.
All of the daughters of Zeus are half sisters of Athena.
So far as I know, he has good relations with all of his family- his wife, daughters,parents and brothers and sisters.
Grand-Nephew
4 daughters, 3 sons.
The sisters are not named per se. Scripture only says Adam and Eve had sons and daughters, not stating the daughters by name.
There is no relationship at all.
Two sisters, daughters and half-sisters of Oedipus and his mother Jocasta.