Promantic Proof from the Number Four

The Roman Pope, the economic or Universal Archipatriarch of the Roman Empire.

Four Ecclesiastical Electors.

The Archbishop of Mainz, Archchancellor of the Holy Roman Empire for Germany and Slavonia.
The Archbishop of Trier, Archchancellor of the Holy Roman Empire for Gaul and the Kingdom of Arles.
The Archbishop of Cologne, Archchancellor of the Holy Roman Empire for Italy and the maritime islands.

Four Lay Electors, who are Arch-princes by decree of Emperor Sigismund.

The King of Bohemia, Archcupbearer of the Holy Roman Empire.
The Count Palatine of the Rhine, Archsteward of the Holy Roman Empire.
The Duke of Saxony, Archmarshal of the Holy Roman Empire.
The Margrave of Brandenburg, Archchamberlain of the Holy Roman Empire.

Four Kings. The four high Kingdoms.

Of the Romans.
Of France.
Of Poland.
Of Hungary.

Four Patriarchs.

Roman.
Constantinopolitan.
Aquileian. These two succeeded in place of the Eastern ones. Alexandrian.
Ravenna. Antiochene.

Four Primates.

Magdeburg.
Lyon.
Esztergom.
Gniezno.

Four Chancellors.

Toledo for Spain.
Canterbury for Britain.
Esztergom for Pannonia.
Gniezno for Sarmatia.

Four Archbishops.

Salzburg.
Reims.
Milan.

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Four Bishops.

Bamberg.
Meissen.
Regensburg.
Würzburg.