Portrait of <a href="https://en.wikipedia.org/wiki/en:William_I,_Elector_of_Hesse" class="extiw" title="w:en:William I, Elector of Hesse"><span title="Landgrave of Hesse-Kassel 1785 – 1821">William I, Elector of Hesse</span></a> (1743-1821), as Landgrave Wilhelm IX
<bdi><a href="https://en.wikipedia.org/wiki/en:Anton_Wilhelm_Tischbein" class="extiw" title="w:en:Anton Wilhelm Tischbein"><span title="German painter (1730-1804)">Anton Wilhelm Tischbein</span></a>
</bdi>
circa 1750-1799
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