Where was the palace of king ahasuerus?

The palace of King Ahasuerus, often identified with the Persian king Xerxes I, was located in the ancient city of Susa (modern-day Shush in Iran). Susa served as one of the capitals of the Persian Empire and was known for its grandeur and elaborate architecture. The palace is notably mentioned in the Book of Esther in The Bible, where significant events of the narrative take place.