a Roman Catholic theologian, who died at Couvin, Belgium, in 1648, is the author of Rationale Evangelizantium (transl. into French by Ricard, Le Rational des Predicateurs de l'Evangile, Paris, 1876, 4 volumes): — Hortum Pastaorum (French, Le Jardin des Pasteurs), a treatise on faith. hope, and charity: — Virga Aaronis Florens (French, La Verge d'Aaron), on the sacerdotal life: — Candelabrum Mysticum, on the seven sacraments. Marchant's works were published in French by Ricard and Berton, in nine volumes. See Lichtenberger, Encyclop. des Sciences Religieuses, s.v.; Jocher, Allgemeines Gelehrten-Lexikon, s.v. (B.P.)