Tentei, the Heavenly Emperor, is the high god of the Ryukyuan royal chronicles. In the opening of the Chūzan Seikan (1650), the oldest official history of the kingdom, he dwells in a heavenly stronghold, looks down upon an empty sea, and commands the goddess Amamikyu to descend and build the Ryukyu Islands, supplying her with the grasses, trees, and stones of heaven. When the finished islands lack people, he sends down his own son and daughter, whose three sons and two daughters become the first sovereign, the first territorial lord, the first farmer, the first high priestess, and the first village priestess. The same heavenly sovereign appears in the royal-government records of the outer islands, where he dispatches the deities Koitsuno and Koitama to bring order and people to the newly made island of Miyako. The figure reflects the court's use of Chinese cosmological language for the native sky realm of Ryukyuan belief.