Pierre Coustant

1654-1721. Roman Catholic scholar. Educated by the Jesuits at Compiègne, his birthplace, he studied at Maurist* houses in Reims and Soissons before going to Paris. After assisting with the great Maurist edition of Augustine, he was entrusted with an edition of Hilary of Poitiers* in 1687, after which he became prior at Nogent-sous-Courcy in 1693. Returning to Paris in 1696, he did his main work, an edition of papal letters, of which only those up to 440 had appeared by his death.