Kamuyaimimi
According to the Kojiki, Kamuyaimi-no-Mikoto not only established the Emperor System but also appointed Takeiotatsu no Mikoto, his grandson, as the national governor. This appointment is considered to be the first time that the king of Japan was appointed to the position of Kunizukuri. Additionally, the palace of Shikinomizugaki, which is located in Nara Prefecture, was built during the reign of the 10th Emperor Sujin.