Xerxes?
The name of the ancient Persion king in scroll of Esther is “Achasverosh”. Maybe Xerxes is another name for him, but I never heard that one.
In the movie they used a name similar to what you posted but they are all the same. I used Xerxes because that is the name most people are familiar with.
Xerxes is the same fellow. Battle of Thermopylae was his “victory” after which he repeatedly messed up. Not much of a general or king.