Central Europe at the time of the Carolingians.
<a class="external text" href="https://en.wikipedia.org/wiki/Friedrich_Wilhelm_Putzger">Friedrich Wilhelm Putzger</a> (1849-1913).
<a rel="nofollow" class="external text" href="https://archive.org/download/PutzgersHistorischerSchul-Atlas-AncientAndMedievalHistoryMaps">Putzger historischer Weltatlas (from: <i>Internet Archive</i>)</a>