Hamburg Elbe river map by Melchior Lorichs created 1568, for an imperial court case to prove Hamburg's claims on the Elbe river.
<bdi><a href="https://en.wikipedia.org/wiki/en:Melchior_Lorck" class="extiw" title="w:en:Melchior Lorck"><span title="Danish/German artist (1527-1583)">Melchior Lorck</span></a>
</bdi>
1568
Hamburger Staatsarchiv