William of Tyre described Fulk as a capable soldier and able politician, but observed that Fulk did not adequately attend to the defense of the crusader states to the north. Ibn al-Qalanisi (who calls him "al-Kund Anjur", an Arabic rendering of "Count of Anjou") says that "he was not sound in his judgment nor was he successful in his administration." The Zengids continued their march on the crusader states, culminating in the fall of the county after the (see Siege of Edessa in 1144, which led to the Second Crusade.