Stalens, Jean a Belgian theologian, was born in Calcar (duchy of Cleves) in 1595, and after having received licensure became curate at Rees in 1626; but being obliged to leave on account of zeal against the Reformed party, he entered the Congregation of the Oratory in 1657, and passed the rest of his life in the convent of Kevelaer (Gueldre), where he died, Feb. 8, 1681. According to Paquot (Memoires, vol. 7), he possessed a great memory, and much judgment as well as knowledge. He wrote several historical and ecclesiastical essays, some of which are mentioned in Hoefer, Nouv. Biog. Générale, s.v.