Map of ruins of <a href="https://de.wikipedia.org/wiki/Altenburg_(Spessart)" class="extiw" title="de:Altenburg (Spessart)">Altenburg Castle</a> in the <a href="https://de.wikipedia.org/wiki/Spessart" class="extiw" title="de:Spessart">Spessart</a> mountains in Germany, in the northwest of Bavaria
Unknown author<span style="display: none;">Unknown author</span>
Land Register of 1845