Emperor Tenji's favorite son, Prince Ōtomo, was the first to have been accorded the title of Daijō-daijin during the reign of his father.[2] The Asuka Kiyomihara Code of 689 marks the initial appearance of the Daijō Daijin in the context of a central administrative body composed of the three ministers: the Daijō-daijin (Chancellor), the Sadaijin (Minister of the Left), and the Udaijin (Minister of the Right). These positions were consolidated under the Code of Taihō in 702.[3]