What happened in the second crusade

While those who participated in the Second Crusade had probably planned to do so before hearing of the loss of Edessa to Zangi, the urgency of the crusade was likely reinforced by the loss. Pope Eugenius III issued a crusading bull (Quantum praedecessors) to Louis VII of France. A Cistercian abbot, Bernard of Clairvaux, convinced Conrad III of Germany to go on crusade as well. Louis VII and Conrad III arrived in Constantinople in 1147. The crusaders then attacked Damascus, a Muslim city that had been allied to the Christians until the attack. Upon the arrival of Nur al-Din (Nureddin) and his forces, the crusaders gave up their siege, ending the Second Crusade. It is important to note that the majority of the crusaders during this period crusaded either in Iberia (where they seized Lisbon) or (more unsuccessfully) on the eastern border of Germany against the Slavs and Wends.

While the Second Crusade didn't directly help the Christian presence in the Mideast, from 1153 to 1169 the Fr War of the roses!