<div class="fn value">
<span lang="en">Anonymous</span> (<a href="https://en.wikipedia.org/wiki/en:Mazovia" class="extiw" title="w:en:Mazovia"><span title="historical region in Poland">Masovia</span></a>)<span style="display:none">Unknown author</span></div>
circa 1620-1640, circa 1520 <div style="display: none;">date QS:P571,+1520-00-00T00:00:00Z/9,P1480,Q5727902</div> (original)
Lileyko Jerzy (1980). <i>Vademecum Zamku Warszawskiego</i>. <a href="//commons.wikimedia.org/wiki/Special:BookSources/83-22318-18-9" title="Special:BookSources/83-22318-18-9">ISBN 83-22318-18-9</a>