 The Countess d'Agoult used an affair he had with a married woman in her campaign in an attempt to discredit him in Liszt's eyes, who nonetheless kept Cohen as his companion for his concert tours around Europe until the end of 1840.His ties to Liszt were not without their own consequences.Friedrich Wieck, father of the future Clara Schumann, began to criticize publicly both Liszt and Cohen in the newspapers in Leipzig.