Roman fresco <i>Jupiter and Ganymede</i> (1758-59) by Anton Raphael Mengs.
<bdi><a href="https://en.wikipedia.org/wiki/en:Anton_Raphael_Mengs" class="extiw" title="w:en:Anton Raphael Mengs"><span title="German-Bohemian painter active in Dresden, Rome and Madrid (1728-1779)">Anton Raphael Mengs</span></a>
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1758
online source