Portrait of John and Robert, sons of <a href="https://en.wikipedia.org/wiki/Robert_Ker,_2nd_Duke_of_Roxburghe" class="extiw" title="w:Robert Ker, 2nd Duke of Roxburghe">Robert Ker, 2nd Duke of Roxburghe</a>, in van Dyck costume with their two dogs, an extensive landscape beyond
<bdi><a href="https://en.wikipedia.org/wiki/en:Thomas_Hudson_(painter)" class="extiw" title="w:en:Thomas Hudson (painter)"><span title="British painter (1701-1779)">Thomas Hudson</span></a>
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18<sup>th</sup> century <div style="display: none;">date QS:P571,+1750-00-00T00:00:00Z/7</div>
<p><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=6282033">6282033</a>
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<a rel="nofollow" class="external free" href="https://www.christies.com/en/lot/lot-6282033">https://www.christies.com/en/lot/lot-6282033</a>