Rothari also made the famous edict bearing his name, the Edictum Rothari, which established the laws and the customs of his people in Latin: the edict did not apply to the tributaries of the Lombards, who could retain their own laws.
Rothari koostas ka kuulsa omanimelise edikti "Edictum Rothari", mis kehtestas seadused ja maksud tema rahvale ladina keeles: edikti ei rakendatud langobardidest maksumaksjaile, kel olid omad seadused.