It is mentioned in the "Life of Louis the Debonnaire," written by Tegan, that the bishops were the principal cause of the humiliation of that Emperor, especially those who had been bondmen and such as were born among the barbarians.
Tégan-ek idatzitako Luis Errukitsuaren Bizitza-n ikus daiteke apezpikuak izan zirela enperadore horren umiliatzaile nagusiak, batez ere jopu izan zirenak eta barbaroen artean jaiotakoak.