The Semu were the name of a political class in Imperial China, made up of foreign experts who came to serve the political systems of Imperial China. The Semu were not a self-defined ethnic group unto
Ma Hajji, a Song dynasty official in Yunnan (a descendant of Sayyid Ajjal Shams al-Din Omar), and his young son Ma He, future admiral Zheng He, as imagined by a modern Kunyang sculptor.