John the Baptist, by Caravaggio (1571-1610), from Web Gallery of Art. Web gallery of Art has agreed to use of images on Wikipedia.
<bdi><a href="https://en.wikipedia.org/wiki/en:Caravaggio" class="extiw" title="w:en:Caravaggio"><span title="Italian painter">Caravaggio</span></a>
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Transferred from <span class="plainlinks"><a class="external text" href="https://en.wikipedia.org">en.wikipedia</a></span> to Commons.