Treaty of San Germano
A 1230 treaty between the Holy Roman Empire and the Papacy, ending the War of the Keys.
Quick Facts: Who was Treaty of San Germano?
- Subject:
- Treaty of San Germano
- Known for:
- A 1230 treaty between the Holy Roman Empire and the Papacy, ending the War of the Keys.
- Verified Source:
- 2Day Chrono-Wiki & Primary Historical Archives
Origins & Early Life
The Treaty of San Germano was signed on 23 July 1230 at San Germano, present-day Cassino, ending the War of the Keys that had begun in 1228. The parties were Pope Gregory IX and Frederick II, king of Sicily and Holy Roman emperor. On 28 August at Ceprano, the peace was finalized with the readmission of the excommunicated Frederick into the church. The negotiations for the treaty, initiated by Frederick, began in November 1229.
Career & Major Achievements
The Lombard League, an ally of Gregory, objected to the process. The intercession of major German princes, especially Duke Leopold VI of Austria and Grand Master Hermann von Salza, was necessary to move things forward. The most important negotiator on the papal side was Cardinal Thomas of Capua, although Gregory's actual representative at the signing was Guala de Roniis. In territorial terms, the treaty essentially restored the status quo ante bellum.
Enduring Legacy & Impact
Frederick recognized the Papal State and Gregory recognized Frederick as king of Sicily and emperor unimpaired. A general amnesty was issued. The biggest concession was Frederick's surrender of his special rights over the church in Sicily.
Chronological Milestones & Life Events
Historical Fact-Check Quiz: Treaty of San Germano
True or False: “True or false: The Treaty of San Germano primarily resulted in Frederick II retaining all of his special rights over the Church in Sicily.”
Answer (FALSE ❌): False. A major concession from Frederick was the surrender of his special rights over the church in Sicily, which was a key term of the treaty.
Contemporary Figures & Related Historical Timelines
- Alfonso IX of León — Historical peer (Died in 1230) (1230): King of León and Galicia, known for modernizing his domain and founding the University of Salamanca.
- Crown of Castile — Historical peer (Born in 1230) (1230): Medieval Iberian polity, forming a global empire from 1230 to 1715.
- Conrad IV of Germany — Historical peer (Born in 1228) (1228): Hohenstaufen King of Germany, Sicily, and Jerusalem in the 13th century.
- Trần Hưng Đạo — Historical peer (Born in 1228) (1228): Great Prince Hưng Đạo, military genius who defended Đại Việt against Mongol hordes.
- Yaqut al-Hamawi — Historical peer (Died in 1229) (1229): Influential Arab bibliographer and geographer known for Mu'jam ul-Buldān.
Frequently Asked Questions about Treaty of San Germano
Who was Treaty of San Germano and what are their primary contributions?
A 1230 treaty between the Holy Roman Empire and the Papacy, ending the War of the Keys. Origins & Early Life: The Treaty of San Germano was signed on 23 July 1230 at San Germano, present-day Cassino, ending the War of the Keys that had begun in 1228. The parties were Pope Gregory IX and Frederick II, king of Sicily and Holy Roman emperor. On 28 August at Ceprano, the peace was finalized with the readmission of the excommunicated Frederick into the church. The negotiations for the treaty, initiated by Frederick, began in November 1229.
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