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After the siege of Edessa in 1144, the Western powers launched the Second Crusade, which accomplished little. The principal chroniclers of the event were Odo of Deuil, chaplin to Louis VII of France, who wrote his account "De profectione Ludovici VII in Orientem" and Otto of Freising who wrote "Gesta Friderici imperatoris" concerning the emperor Frederick Barbarosso. ️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️ Thomas Fuller referred to it as Voyage 3 of the Holy Warre. 1147 Wendish Crusade (one of the Northern Crusades) is usually associated with the Second Crusade.