sentences:  Pope Benedict appointed four ecclesiastics as his legates to the khan's court.In 1338, a total of 50 ecclesiastics were sent by the pope to Peking, among them John of Marignolli, who returned to Avignon in 1353 with a letter from the Yuan emperor to Pope Innocent VI.But soon, the Han Chinese rose up and drove the Mongols out of China, establishing the Ming Dynasty in 1368.