Romzug

An ''Italienzug'' (also known as ''Romfahrt'' or ''Romzug'', Latin ''expeditio italica'') was the expedition undertaken by an elected king of the Romans to be crowned by the pope as the Holy Roman emperor in the City of Rome. Prior to the reforms of Frederick Barbarossa, the kings of the Romans struggled to muster an army for the expedition, for they needed the formal approval of the '' Reichstag''. If such permission was granted, the king had permission to recruit knights for their military service in Italy for 410 days.

However, the nobility was generally disinterested and inclined to rather substitute a monetary payment for the service. Therefore, the small force tended to be composed of mercenaries and high ranking clergymen, reinforced by loyal Italian cities. Occasionally the substitution was not enough; Henry V ended up using his wife Matilda's dowry to fund his ''Italienzug''.
Following Barbarossa's struggles against the Lombard League towards the end of the 12th century, the system was reformed by banning monetary substitution and requiring each prince to contribute a fixed amount of troops to the cause. These troops could be substituted by an amount of money, which was eventually known as the Roman Month.

Expeditions

* The 961-2 ''Italienzug'' - Otto I
* The 1046 ''Italienzug'' - Henry III
* The 1090 ''Italienzug'' - Henry IV
* The 1154–55 ''Italienzug'' - Frederick I
* The 1310-13 ''Italienzug'' - Henry VII
* The 1327-29 ''Italienzug'' - Louis IV
* The 1433 ''Italienzug'' - Sigismund
* The 1451-52 ''Italienzug'' - Frederick III
* The 1508 ''Italienzug'' - Maximilian I, incomplete, blocked by Venetians
* The 1529 '' Italienzug'' - Charles V, expedition to Bologna, final ''Italienzug''

References

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History of the Holy Roman Empire
Medieval history of Italy