<bdi><a href="https://en.wikipedia.org/wiki/en:Andreas_Achenbach" class="extiw" title="w:en:Andreas Achenbach"><span title="German artist (1815-1910)">Andreas Achenbach</span></a>
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<a rel="nofollow" class="external text" href="https://www.lempertz.com/de/kataloge/lot/992-1/52-andreas-achenbach.html">Kunsthaus Lempertz, Köln, 21.03.2012, lot 52</a>