In George frideric handels opera xerxes the title character is the king of what land?

In George Frideric Handel's Opera "Xerxes," the title character is the king of Persia. The opera, also known as "Serse," is set in ancient Persia and explores themes of love, power, and desire. Xerxes is portrayed as a capricious and somewhat foolish ruler, which adds a comedic element to the story.