Prior to the compilation of Taiho Code, the Yamato kingdom (ancient kingdom of Japan) summoned SHIMOTSUKENU no Komaro who was a member of the local ruling family SHIMOTSUKENU in Shimotsuke Province (present-day Tochigi Prefecture) in Togoku, to be engaged in compilation of the codes with FUJIWARA no Fuhito.
なおヤマト王権は大宝律令の編纂に先じて東国下野国（現在の栃木県）の国造・下毛野君の一族である下野宇都宮氏下毛野氏を召集し、藤原不比等と伴に律令編纂に従事させている。