<bdi><a href="https://www.wikidata.org/wiki/Q59378901" class="extiw" title="d:Q59378901"><span title="German wood engraver">Joachim Christian Adolf Friedrich</span></a>
</bdi>
1. <a rel="nofollow" class="external text" href="http://www.gallery.ca/en/see/collections/artwork.php?mkey=14617">National Gallery of Canada (old museum page)</a><br>2. <a rel="nofollow" class="external text" href="https://www.gallery.ca/collection/artwork/boy-sleeping-on-a-grave">National Gallery of Canada</a>