<bdi><a href="https://en.wikipedia.org/wiki/en:L%C3%A9on_Richet" class="extiw" title="w:en:Léon Richet"><span title="French painter (1843–1907)">Léon Richet</span></a>
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<a rel="nofollow" class="external text" href="https://www.lot-tissimo.com/de/i/8422684/p/5/">Van Ham Kunstauktionen, Köln, 14.11.2014, Los 769 via Lot-tissimo</a>