The Book of Esther doesn't actually mention his background, but as the King of Persia, it is assumed that he was Persian.
Yes. Xerxes is the Greek name for Ahasuerus.
King Ahasuerus
The Esther in the Bible married the King Ahasuerus.
Ahasuerus
Easter
Xerxes, Greek for the biblical Ahasuerus.
Haman's house.
Bigthana and Teresh
Yes, Ahasuerus was his first son who also became king after Daruis' death.
King Xerxes was assassinated in 465 BCE, stabbed by the captain of the guards.
No. Vashti made such a feast. The feast of Esther was private; only Ahasuerus and Haman were invited.
Greek equivalent for Xerxes who lived as King of Persia. See related link: