Wikipedia
Artaynte
Artaynte was the wife of the Crown Prince Darius, and also the wife of Xerxes I, brother of Darius, who was also married to Amestris, Xerxes son, and married to Atossa, the Achaemenid queen and daughter of Cyrus the Great and former wife of Xerxes father, Darius I, she was also courted to bring down power from Xerxes father and transfer control of the empire to his son, Xerxes.