| Frederick's Jerusalemite Campaign |
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| Part of the Middle Eastern Wars |
The Siege of Acre was the first major confrontation of the Middle Eastern Wars |
| Date | 1245-1271 |
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| Location | |
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| Result |
Treaty of Acre
- King Frederick pacifies the rebelling dukes of Jerusalem.
- Judaea recaptured by King Frederick.
- Breakaway Egyptian and Arabian caliphates are reconquered, as well as the Duchy of Cilia.
- Emirate of Baghdad, western Persia, northern Caucasia is abandoned by Jerusalem.
- Christians agree to unarmed Muslim pilgrimages to Mecca
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Territorial
changes |
De-Jure Kingdom of Jerusalem is reunified under Anjou control; The Kingdom of Jerusalem becomes independent from the Holy Roman Empire; Loss of southern Egypt, Baghdad Emirate, western Persia, the Caucasus and North Eastern Anatolia. |
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| Belligerents |
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Frederickians
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Muslims
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Christians
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| Commanders and leaders |
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Christians
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Muslims
Christians in alliance with Muslims
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| Strength |
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Saxon Faction: 75,000
Pechengia: 50,000
Kingdom of Aragon: 45,000
Frederick's Loyalists: 35,000
Knights Hospitaliser: 11,000
Knights Templar/Teutonic : 8000
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Total: ~220,000 |
Total: ~150,000 |
Total: ~350,000 |
| Casualties and losses |
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|
~55,000 (At least 150,000 civilian) |
~100,000 (At least 500,000 civilian) |
~200,000 (At least 1.1 million) |
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