I'm on a bit of a quest to contextualize the story of Purim by getting a better sense of the ages of the main characters. So far, with Mi Yodeya's help, I've explored the age of Esther, and I have also discovered a suggested age of Mordechai. I've also been exploring the age of Haman.
Are there any textual sources in Midrashic or later literature which provide an age for Achashverosh during the Purim story?
I do understand that this one is a bit more nuanced since the identity of Achashverosh is debated amongst modern historians (though, from my understanding, he is generally identified as being Xerxes I, who was assassinated at age 54).