and reveal their writer as an energetic man of wide sympathies and considerable influence. Ado's principal works are a martyrology, and a chronicle, Chronicon sive Breviarium chronicorum de sex mundi aetatibus de Adamo usque ad annum 869.

Ado's chronicle is based on that of Bede, with which he combines extracts from the ordinary sources, forming the whole into a consecutive narrative founded on the conception of the unity of the Roman Empire,