Portrait of <a href="https://en.wikipedia.org/wiki/en:Ferdinand_I_of_the_Two_Sicilies" class="extiw" title="w:en:Ferdinand I of the Two Sicilies"><span title="King of Naples (1759-1806, 1815-1816), Sicily (1759-1816), and the Two Sicilies (1816-1825)">Ferdinand I of the Two Sicilies</span></a> (1751-1825)
<bdi><a href="//commons.wikimedia.org/wiki/Category:18th-century_portrait_paintings_of_men,_artist_and_location_missing" title="Category:18th-century portrait paintings of men, artist and location missing">Unidentified painter</a>
</bdi>
<a href="https://en.wikipedia.org/wiki/Christie%27s" class="extiw" title="en:Christie's">Christie's</a>, LotFinder:  entry  <a rel="nofollow" class="external text" href="https://www.christies.com/LotFinder/lot_details.aspx?intObjectID=5126671">5126671</a>