<bdi><a href="https://en.wikipedia.org/wiki/en:Ludwig_Richter" class="extiw" title="w:en:Ludwig Richter"><span title="German painter and engraver (1803-1884)">Ludwig Richter</span></a>
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1868<div style="display: none;">date QS:P571,+1868-00-00T00:00:00Z/9</div>
1. <a rel="nofollow" class="external free" href="https://purl.org/nga/collection/artobject/139137">https://purl.org/nga/collection/artobject/139137</a> <br>2. <a rel="nofollow" class="external text" href="https://www.nga.gov/collection/art-object-page.139137.html">National Gallery of Art, Washington, D. C., online collection</a>