Promantic Proof from the Number Four

A woodcut illustration depicts several lists of four categories, each with a title and a corresponding set of four places or cities arranged in a list to the right of a large opening curly bracket.

Four Imperial Cities, so-called by excellence. The four main cities.

• Augsburg.
• Aachen.
• Metz.
• Lübeck.

Four Royal Cities. The four Royal Cities.

• Naples.
• Paris.
• Krakow.
• Buda, otherwise Copenhagen.

Four Electoral Cities. The four Elector cities.

• Prague.
• Heidelberg, otherwise Amberg.
• Württemberg.
• Küstrin.

Four Trading Hubs. The four Trade cities.

• Marseille.
• Mainz, now Frankfurt.
• Venice.
• [Illegible] now Antwerp, or Amsterdam.

Four Boroughs, that is, fortifications.

• Altenburg.
• Magdeburg.
• Rothenburg ob der Tauber.
• Mecklenburg, otherwise Luxembourg.

Four Villages. The four Villages.

• Bamberg.
• Ulm.
• Haguenau.
• Sélestat.

Four Quarters. The four Districts.

• Ingelheim.
• Altdorf, otherwise Atrip.
• Liechtenau.
• Denkendorf, otherwise Deggendorf.

Four Hamlets. The four Hamlets.

• Orlamünde.

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Four Bergs, that is, mountains. The four Mountains.

• Münsterberg.
• Friedberg.
• Heidelberg.
• Nuremberg.