<bdi><a href="https://www.wikidata.org/wiki/Q18611778" class="extiw" title="d:Q18611778"><span title="German painter (1824-1889), son of Caspar David Friedrich">Adolf Friedrich</span></a>
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1871<div style="display: none;">date QS:P571,+1871-00-00T00:00:00Z/9</div>
<a rel="nofollow" class="external text" href="http://www.arcadja.com/auctions/de/private/friedrich_gustav_adolf/kunstwerken/10426/0/?rvn=3">Sotheby's, London, 13 June 2002, lot 247 via ARCADJA auction results</a>