The Second Crusade (1147-1150) was the second major crusade launched from Europe. The Crusade was started in response to the fall of the County of Edessa in 1144 to the forces of Zengi. The county had been founded during the First Crusade. While it was the first Crusader state to be founded, it was also the first to fall.
The Second Crusade was led by European kings, namely Louis VII of France and Conrad III of Germany, with help from a number of other European nobles. The armies of the two kings marched separately across Europe. Then they faced the Seljuk army.