Esther was born between 500-508 BC.
Dr John MacArthur in the "MacArthur Study Bible" says Ahasuerus [ie Xerxes] ruled from 486 to 465BC when he was assassinated, and Esther covers the 483-473BC...
There is no mention of this in the relevant scriptures.
The Book of Esther does not mention any children of Esther. Historically, King Xerxes I had several children by various wives, but does not...