"Prior to the Battle of Torgau, Frederick the Great halts with his army to fill a swamp in order to bring the cannons across it.  Next to him, General <a href="https://en.wikipedia.org/wiki/Hans_Joachim_von_Zieten" class="extiw" title="en:Hans Joachim von Zieten">Ziethen</a> has fallen asleep.  A soldier's wife comes and sets a pot of potatoes on the king's fire without noticing him and blows into the fire so that ash flies into his face.  The king smiles."  (Catalog of the Exhibition of the Berlin Academy, 1793)
<bdi><a href="https://en.wikipedia.org/wiki/en:Bernhard_Rode" class="extiw" title="w:en:Bernhard Rode"><span title="German artist (1725-1797)">Bernhard Rode</span></a>
</bdi>
Bode-Museum