He is best known for his Lives of the Saints of Armorican Brittany, published in 1637 in Nantes by Pierre Doriou, and for which he notably used ancient manuscripts no longer extant.
The work was expanded and republished under the auspices of Guy Autret of Missirien (Rennes, Jean Vatar, 1659), who had collaborated with the Dominican, in 1680.
Daniel-Louis Miorcec de Kerdanet offered a new edition, without the episcopal catalogs, in 1837 (P. Anner in Brest).
The standard edition remains that of the "Three Canons", published in 1901 (J. Salaün, Quimper) by Alexandre-Marie Thomas, Jean-Marie Abgrall and Paul Peyron.
Albert Le Grand also published in 1640 the Providence of God on the Righteous in the Admirable History of St. Budoc Archbishop of Dol in J. Durand in Rennes.