After two years and three months, in the autumn of 890, Argrim was forced to flee Langres and Theutbald was installed as bishop. According to the Annales Vedastini, in late 894 Theutbald was assassinated and Argrim returned to power. Pope Formosus immediately anathematised the assassins, but granted the pallium to Argrim. In 896, Pope Stephen VI, who had been an enemy of Formosus, declared Argrim deposed. Argrim went to Rome to protest, and in 899 John IX revoked the deposition. His successor, Benedict IV, confirmed the revocation. In 910 Argrim resigned and returned to Saint-Bénigne de Dijon. His tombstone is preserved in the museum of Chalon-sur-Saône. It reads:
