<bdi><a href="https://en.wikipedia.org/wiki/en:Christen_K%C3%B8bke" class="extiw" title="w:en:Christen Købke"><span title="Danish artist (1810-1848)">Christen Købke</span></a>
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1848<div style="display: none;">date QS:P571,+1848-00-00T00:00:00Z/9</div>
1. <a rel="nofollow" class="external text" href="http://www.arcadja.com/auctions/en/private/k%C3%B6bke_christen/artworks/15601/0/">Bruun Rasmussen via ARCADJA auction results</a><br>2. <a rel="nofollow" class="external text" href="https://www.nationalgallery.org.uk/paintings/christen-kobke-portrait-of-p-ryder-son-of-the-artist-s-cousin">National Gallery, London - online catalogue</a>.<br>