You mother's sister is your aunt.
Your aunt's daughter is your first cousin.
Your first cousin's daughter is your first cousin, once removed.
So your mother's sister's daughter's daughter is your first cousins, once removed.
What family members your is fathers mothers daughters sons sisters
The relation of the mother;s sister to daughter is niece-aunts.
Your sisters daygter is your neice!
no....because she is a sister for you
They are sisters; both daughters of Rhea and Cronus.
They would be great nieces or great nephews.
your second nephew
Medusa and her two sisters were daughters of Phorcys and Ceto.
4 daughters, 3 sons.
Never Ever. It is forbidden per Islam teachings; as stated explicitly in Quran; for A muslim man to marry his mother, sister, daughter, ...Quran says (Meaning English translation):"Prohibited to you [for marriage] are your mothers, your daughters, your sisters, your father's sisters, your mother's sisters, your brother's daughters, your sister's daughters, your [milk] mothers who nursed you, your sisters through nursing, your wives' mothers, and your step-daughters under your guardianship [born] of your wives unto whom you have gone in. But if you have not gone in unto them, there is no sin upon you. And [also prohibited are] the wives of your sons who are from your [own] loins, and that you take [in marriage] two sisters simultaneously, except for what has already occurred. Indeed, Allah is ever Forgiving and Merciful." (4:23)
That would be your cousin so no you can't.
I believe that would be a fifth cousin