Madame Le Gros in lilac dress
<bdi><a href="https://en.wikipedia.org/wiki/en:Jean-Baptiste_Weyler" class="extiw" title="w:en:Jean-Baptiste Weyler"><span title="French painter, 1747-1791">Jean-Baptiste Weyler</span></a>
</bdi>
before 1791 <div style="display: none;">date QS:P571,+1791-00-00T00:00:00Z/7,P1326,+1791-00-00T00:00:00Z/9</div> <small>(the artist died that year)</small>
<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=6157802">6157802</a>