Jaya Harivarman marches north with his army,…

The possessions of the late Zengi had been divided between his sons: Nur ad-Din had received Aleppo and Saif ad-Din Ghazi Mosul, while Qutb ad-Din Mawdud had received the emirate of Homs.

After the death of Saif ad-Din Ghazi in 1149, Qutb ad-Din Mawdud is the first to arrive in Mosul and have himself recognized as emir; Nur ad-Din, who desires to add the city to his lands, occupies Homs and Sinjar, preparing to attack his brother.

Only the intervention of veterans of the Aleppo army, who refuse to take part in the fratricidal war, which would only weaken the effort against the Crusaders and the emirate of Damascus, forces Nur ad-Din to renounce the expedition and to reconcile with his brother.

Bahram, building an army, marches back to Ghazni.

Sayf flees, but the Ghaznavid army catches up with him and a battle ensues at Sang-i Surakh.

Sayf and Majd ad-Din Musawi are captured and later crucified at Pul-i Yak Taq.

After his death, he is succeeded by his brother Baha al-Din Sam I, who continues building Firuzkuh, and prepares an army to march towards Ghazna to avenge the death of his two brothers, but dies shortly of natural causes before he reaches the city.

Ala al-Din Husayn, the younger brother of Sayf and Baha al-Din, then ascends the Ghurid throne.

Louis remains behind in Jerusalem until 1149.

The discord also extends to the marriage of Louis and Eleanor, which has been falling apart during the course of the Crusade.

Louis and Eleanor, who are barely on speaking terms by April, pointedly board separate ships to take them back to France.

The crusaders in Jerusalem meanwhile have begun to refurnish the rebuilt Church of the Holy Sepulchre in a Romanesque style and added a bell tower.

These renovations, which unify the small chapels on the site, are completed during the reign of Queen Melisende in 1149, placing all the Holy places under one roof for the first time.

The church, an important pilgrimage destination since at least the fourth century, as the purported site of the death and resurrection of Jesus, becomes the seat of the first Latin Patriarch, and is also the site of the kingdom's scriptorium. (Much of this structure exists today.)

Venice aids Manuel in retaking Corfu from the Normans in 1149, but the Venetians offend him by their aggressive behavior.

Beliefs that combine Christianity and Manicheanism, such as Bogomilism, had arrived in southern France via trade routes from Eastern Europe by the eleventh century.

Proto-Cathars had appeared in Limousin between 1012 and 1020, but by the twelfth century, the Christian anti-Catholic movement has become become very popular on southern France and the Church considers it a threat.

The first Cathari bishopric is established in 1149.

Pope Eugene III takes refuge in Ptolemy's Tusculuan fortress on April 8, 1149.

This is the first time in forty years that the count of Tusculum has acted as a true ally of the true pope.

At this time, Louis VII of France stops in Tusculum on return from the Second Crusade.

Though shocked by the pope's straits, the king of France does nothing to help the pontiff.

On November 7, Eugene leaves Tusculum.

Ramon, in 1149, takes Fraga, …

…Lleida, and …

…Mequinenza in the confluence of the Segre, Cinca and Ebro.

The Christian reconquista of the actual Catalonia is complete.

Genoa had taken part in the Siege of Almería in 1147, helping Alfonso VII of León and Castile reconquer the city from the Muslims.

After the conquest, the republic had leased out its third of the city to one of its own citizens, Otto de Bonvillano, who had sworn fealty to the republic and promised to guard the city with three hundred men at all times.

This demonstrates how Genoa's early efforts at expanding her influence involve enfeoffing private citizens to the commune and controlling overseas territories indirectly, rather than through the republican administration.

Genoa in 1149 grants the benefits of a part of the city's fiscal revenues to a consortium of creditor called compera, the first example of the consolidation of public debt in medieval Europe.