Yi Yin

Yi Yin, was a Chinese politician who served as a Minister of the Right for Predynastic Shang and the early Shang dynasty. He encouraged and helped Tang of Shang, the founder of the Shang dynasty, defeat Jie of Xia at the Battle of Mingtiao. Oracle inscriptions of Yi have been found, implying his social status was high; for example, on one occasion, a sacrifice made to him coincided with the day in which Bao Ding was to be venerated.