This is a artwork of Khosrau I, also known as Anushirvan, he was one of the greatest rulers of the Sassanid Empire.
Anonymous 19th-century book illustrator
1880
<p><b>Original publication</b>: European print edition of Jalāl-al-Din Mir-zā, <i>Nāma-ye ḵosrovān</i>, ed. Vienna, 1880, p. 325.<br></p>
<b>Immediate source</b>: <a rel="nofollow" class="external free" href="http://www.iranicaonline.org/articles/jalal-al-din-mirza">http://www.iranicaonline.org/articles/jalal-al-din-mirza</a>