On hearing of the fall of Edessa (now the modern day city of Urfa, the first of the Crusader states established in the Levant) to the Turks, which occurred in 1144, he had, in December 1145, addressed the bull "Quantum praedecessores" to Louis VII of France, calling on him to take part in another crusade. At a great diet held at Speyer in 1146, King Conrad III of Germany and many of his nobles were also incited to dedicate themselves to the crusade by the eloquence of Bernard of Clairvaux, preached to an enormous crowd at Vézelay. The Second Crusade turned out to be "an ignominious fiasco" and, after travelling for a year, the army abandoned their campaign after just five days of siege "having regained not one inch of Muslim territory." The crusaders suffered immense losses in both men and materiel and suffered, in the view of one modern historian, "the ultimate humiliation which neither they, nor their enemies, would forget".