COSSART, GABRIEL. — Jesuit, sacred orator, poet, and canonist. Born at Pontoise on 22 Nov. 1615, died on 18 Sept. 1674 at the College of Clermont in Paris, where he had been professor of rhetoric.
His oratorical and poetic compositions were republished in Paris in 1675. C. is particularly known for having undertaken the completion of the collection: Sacrosanta Concilia, in which Fr. Fil. Labbe had published vols. I–VII and XII–XV. Fr. C. undertook to complete volumes IX–X, which Labbe, overtaken by death (1667), had left unfinished, and to compile volume XI (Paris 1671–72). One should also recall among his works: Parthenii patriarchae Constantinopolitani decretum synodale super calvinianis dogmatibus quae in epistola Cyrilli nomine ante annos aliquot edita, falso Graecorum et Orientalium consensu recepta ferebantur (Paris 1643).