Ahasuerus is a name applied in the Hebrew Bible to three rulers of Ancient Persia and to a Babylonian official first appearing in the Tanakh in the Book of Esther and later in the Book of Tobit. It is
Esther Before Ahasuerus (1547–48), Tintoretto, Royal Collection.
The Banquet of Ahasuerus, Aert de Gelder
The wrath of Ahasuerus (anonymous), Rijksmuseum
Ahasuerus and Haman at Esther's Feast, by Rembrandt
Xerxes I was a Persian ruler who reigned as the fourth King of Kings of the Achaemenid Empire, reigning from 486 BC until his assassination in 465 BC. He was the son of Darius the Great and Atossa.
Ahasuerus
…or "Artaxerxes;" both are names of multiple Achaemenid dynasty Persian kings. The Hebrew form is believed to have derived from the Old Persian name of Xerxes I, Xšayāršā (< xšaya 'king' + aršan 'male' > 'king of all male; Hero among Kings'). That became Babylonian Aḫšiyâršu (𒄴𒅆𒐊𒅈𒋗, aḫ-ši-ia-ar-šu) and then…
Rock relief of Xerxes I from Persepolis, kept at National Museum of Iran
Engraving of Babylon by H. Fletcher, 1690
The soldiers of Xerxes I, of all ethnicities, on the tomb of Xerxes I, at Naqsh-e Rostam
Achaemenid king killing a Greek hoplite. Impression from a cylinder seal, sculpted c. 500–475 BC, at the time of Xerxes I Metropolitan Museum of Art