German educator and thinker <a href="https://de.wikipedia.org/wiki/Adolph_Diesterweg" class="extiw" title="de:Adolph Diesterweg">Adolph Diesterweg</a> (1790-1866)
<bdi><a href="//commons.wikimedia.org/wiki/Category:19th-century_portrait_paintings_of_men,_artist_and_location_missing" title="Category:19th-century portrait paintings of men, artist and location missing">Unidentified painter</a>
</bdi>
circa 1860 <div style="display: none;">date QS:P571,+1860-00-00T00:00:00Z/9,P1480,Q5727902</div>
<span class="int-own-work" lang="en">Own work</span>. Foto: <a href="https://de.wikipedia.org/wiki/Benutzer:Eike_Christian_Hirsch" class="extiw" title="de:Benutzer:Eike Christian Hirsch">Eike Christian Hirsch</a>