The Imperial Families were the families of the Emperor and his closest followers. The original Imperial line was founded by the Kami Hantei, and the families by his followers Seppun and Otomo. Miya was granted a family at the beginning of the reign of Hantei Genji. Toturi became emperor following the death of Hantei XXXIX during the Clan War and the end of the Hantei Dynasty, and in turn Iweko I became Empress in the Celestial Tournament in 1170.