An Edo-period historian and poet who was born on Jan. 21, 1780 in Hiroshima-han and died on Oct. 16, 1832. His father, Rai Shunsui (頼春水), was a Confucian scholar. His works included: The Unofficial History of Japan (日本外史), Chronicles of the Japanese Government (日本政記), Sanyou Poem Selections (山陽詩鈔), Notes on Morality (通義), etc.