Portrait of <a href="https://en.wikipedia.org/wiki/Charles_Frederick_II,_Duke_of_W%C3%BCrttemberg-Oels" class="extiw" title="w:Charles Frederick II, Duke of Württemberg-Oels">Charles Frederick II, Duke of Württemberg-Oels</a> (1690-1761)
<bdi><a href="//commons.wikimedia.org/wiki/Category:18th-century_unidentified_engravers" title="Category:18th-century unidentified engravers">Unidentified engraver</a>
</bdi>
eingescannt aus: Harald Schukraft: Kleine Geschichte des  Hauses Württemberg,  Tübingen, 2006, ISBN 13-978-3-87407-5, S. 168