Cek Ko-po may have been the name of the Chinese founder of Demak, traditionally regarded as the first Islamic state in Java. Demak's history, however, is obscure. In their study of early Javanese Islamic states, Pigeaud and de Graaf conclude that Demak was founded in the last quarter of the fifteenth century C.E. by a Chinese Muslim. The Hikayat Hasanuddin , from Banten (West Java), which is reflected in some seventeenth-century Dutch sources, identifies this person as Cek Ko-po from "Munggul," which De Graaf and Pigeaud