Question: who is ahasuerus in esther?
Answer: In Daniel 9:1 Ahasuerus is presented as the father of “Darius the Mede,” who is said to have become king over Babylonia upon the death of Belshazzar. ... Ahasuerus appears most prominently in the Book of Esther, and the intrigues of the king's court provide the biblical origin of the festival of Purim.