<bdi><a href="https://www.wikidata.org/wiki/Q26723698" class="extiw" title="d:Q26723698"><span title="German peinter">Karl Heinrich Hoff</span></a>
</bdi>
<a rel="nofollow" class="external text" href="https://www.mutualart.com/Artwork/Portrait-of-a-red-haired-boy-in-a-garden/E12C96A2184B5902">Auktionshaus Kaupp, Sulzburg, Sep. 24, 2016, lot 3273 via MutualArt</a>