The <a href="https://en.wikipedia.org/wiki/Holy_Roman_Empire" class="extiw" title="en:Holy Roman Empire">Holy Roman Empire</a> (of the German Nation) at its greatest territorial extent.
F.A. Brockhaus' Geogr.-artist. Anstalt, Leipzig. (Brockhaus Kleines Konversations-Lexikon Fünfte Auflage von 1911)
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