Extended Strong's Hebrew Lexicon (Brown-Driver-Briggs based)
Ahasuerus
Usage: A man living at the time of Exile and Return, first mentioned at Ezr.4.6; married to Vashti (H2060); father of: Darius (H1868H) § Ahasuerus = "I will be silent and poor" title of the king of Persia, probably Xerxes