Crusader Frankish and the Christian Kingdom of Jerusalem

1. The First Crusade (1096–1099):
   • Origins: The First Crusade was launched in 1096 by Pope Urban II in response to a call from the Byzantine Emperor Alexios I Komnenos for help against the Seljuk Turks. Urban II promised spiritual rewards, such as indulgences, to those who would take part.
   • Campaign and Capture of Jerusalem: The crusaders, composed of knights and peasants, marched across Europe and Asia Minor. They captured Jerusalem in July 1099 after a brutal siege. This victory led to the establishment of several Crusader states in the region.
2. Establishment of Crusader States:
   • Kingdom of Jerusalem: The most significant Crusader state established was the Kingdom of Jerusalem, with Godfrey of Bouillon initially declared “Defender of the Holy Sepulchre” and later succeeded by Baldwin I as king.
   • Other States: Other Crusader states included the County of Tripoli and the Principality of Antioch, each with its own governance and territories.

Crusader Rule in the Holy Land

1. Kingdom of Jerusalem (1099–1291):
   • Early Years: The early Crusader period saw a series of military campaigns to consolidate control over the newly captured territories. The Kingdom of Jerusalem was initially established with Jerusalem as its capital.
   • Military Orders: During this time, several military orders were founded, including the Knights Templar, the Knights Hospitaller, and the Teutonic Knights. These orders played significant roles in defending Crusader territories and participating in military campaigns.
2. The Second Crusade (1147–1149):
   • Cause and Failure: Prompted by the fall of the County of Edessa, the Second Crusade aimed to recapture lost territories. However, it was largely unsuccessful, failing to achieve its objectives and leading to a loss of morale among the Crusaders.
3. The Third Crusade (1189–1192):
   • Saladin and the Fall of Jerusalem: The Third Crusade was launched in response to the capture of Jerusalem by the Muslim leader Saladin in 1187. Prominent leaders such as Richard the Lionheart of England, Philip II of France, and Frederick I Barbarossa of the Holy Roman Empire participated.
   • Outcome: Although the Crusaders achieved some victories, including the capture of the port city of Acre, they failed to recapture Jerusalem. The Treaty of Jaffa in 1192 allowed Christians to maintain a presence in the Holy Land but left Jerusalem under Muslim control.
4. The Fourth Crusade (1202–1204):
   • Diversion to Constantinople: Intended initially to recapture Jerusalem, the Fourth Crusade was diverted to Constantinople, leading to the sack of the Byzantine capital in 1204. This resulted in the establishment of the Latin Empire in Constantinople, but the Crusaders did not return to the Holy Land.
5. The Fifth Crusade (1217–1221):
   • Egyptian Campaign: This Crusade focused on Egypt, a strategic center for the Muslim forces. The campaign ended in failure, with the Crusaders being forced to withdraw after a failed siege of Damietta.
6. The Sixth Crusade (1228–1229):
   • Diplomatic Success: Led by Emperor Frederick II, this Crusade achieved a significant diplomatic victory rather than a military one. Frederick negotiated with the Ayyubid Sultan al-Kamil to regain Jerusalem peacefully, though the Crusaders’ control over the city was short-lived.
7. The Seventh Crusade (1248–1254):
   • Louis IX of France: This Crusade, led by King Louis IX of France, targeted Egypt. The campaign was disastrous, culminating in the capture of Louis IX and the eventual peace settlement that saw the Crusaders withdraw from the region.
8. The Eighth Crusade (1270):
   • Final Crusade: Louis IX attempted another Crusade, but it was largely ineffective. The campaign ended with the death of Louis IX in Tunis and failed to achieve its goals.

The End of Crusader Rule

1. Mamluk Conquest:
   • Rise of the Mamluks: The Mamluk Sultanate, which rose to power in Egypt, began to threaten Crusader territories. By the mid-13th century, the Mamluks launched a series of campaigns against the Crusader states.
   • Fall of Acre: The final blow came with the capture of Acre, the last major Crusader stronghold, by the Mamluks in 1291. This event marked the end of Crusader presence in the Holy Land.