Northern facade of the château de Chenonceau
<bdi><a href="https://en.wikipedia.org/wiki/en:Gustave_Le_Gray" class="extiw" title="w:en:Gustave Le Gray"><span title="French photographer">Gustave Le Gray</span></a>
</bdi>
1851
Jean-Pierre Babelon: <i>Châteaux de France au siècle de la Renaissance</i>. Flammarion, Paris 1989, <a href="//commons.wikimedia.org/wiki/Special:BookSources/2-08-012062-X" title="Special:BookSources/2-08-012062-X">ISBN 2-08-012062-X</a>, S. 601.