He went into politics during the reign of Emperor Tenmu, held high positions during the reigns of Empress Jito and Emperor Monmu, and achieved to the top of Giseikan (Legislature) as Udaijin (Minister of the Right) in his later years.
天武天皇の時代から政治に携わり、持統、文武の代に高い地位にあり、晩年には右大臣として議政官の頂点にあった。