Sri Maharaja Diraja is the founding ancestor of the Minangkabau in the tambo tradition. The youngest of Iskandar Zulkarnain's three royal sons, he sails to Sumatra and comes ashore upon the summit of Mount Merapi while the peak still rises, egg-small, above a receding primordial sea. From that mountain the Minangkabau world unfolds: the three luhak of Tanah Datar, Agam and Limo Puluah Koto, and beyond them the rantau. The tambo makes him husband of Puti Indo Jalito and, in the common recension, father of Datuk Ketumanggungan, so that the volcano-origin of the people and the origin of its dual customary law are joined in a single genealogy. Sources differ on the number and names of his companions and on whether the landfall precedes or follows the peopling of the coast.