<bdi><a href="https://en.wikipedia.org/wiki/en:Caspar_David_Friedrich" class="extiw" title="w:en:Caspar David Friedrich"><span title="German painter">Caspar David Friedrich</span></a>
</bdi>
1823
1. <a rel="nofollow" class="external text" href="http://www.bildindex.de/">Bildindex der Kunst und Architektur</a>: object <a rel="nofollow" class="external text" href="https://www.bildindex.de/document/obj02531380"><i>02531380</i></a> – image file <a rel="nofollow" class="external text" href="http://www.bildindex.de/bilder/ng1813_033a.jpg"><i>ng1813_033a.jpg</i></a><br>2. <a rel="nofollow" class="external text" href="//www.google.com/culturalinstitute/asset-viewer/JwGtBt3vfaoerQ">JwGtBt3vfaoerQ</a> — <a href="https://en.wikipedia.org/wiki/en:Google_Arts_%26_Culture" class="extiw" title="w:en:Google Arts &amp; Culture"><span title="app and website exploring partner museums">Google Arts &amp; Culture</span></a>