Cardinal James Davy du Perron (a Frenchman, d. 1618), wrote in his own mother tongue. His chief works are the Traité du Sacrement de l’Eucharistie, his controversies with James I. of England (that is, really with Casaubon), and the celebrated acts of the discussion with Philip Mornay, the so-called Calvinist pope.
In Germany Valentia found worthy disciples in the keen and learned Adam Tanner (d. 1635), and the erudite and prolific James Gretser (d. 1625), both Jesuits of Ingolstadt, who worked together and supplemented each other’s labours. Tanner, who was also a scholastic of note, followed the example of his master by condensing his controversial labours in his commentary on the Summa. Gretser, on the other hand, spread out his efforts in countless skirmishes, especially on historical subjects. His works fill sixteen volumes folio. Germany was also the scene of the labours of the brothers Adrian and Peter Walemburch, who were natives of Holland, and were both coadjutor-bishops, the one of Cologne, the other of Mayence. They jointly composed numerous successful controversial works, though only in part original, which were afterwards collected under the title of Controversiæ Generales et Particulares, in two volumes folio.
About this time and soon afterwards many classical treatises on particular questions appeared in France. Nicolas Coeffeteau, a Dominican, wrote against M. A. de Dominis, Pro Sacra Monarchia Ecclesiæ Catholicæ; Michael Maucer, a doctor of Sorbonne, on Church and State, De Sacra Monarchia Ecclesiastica et Sæculari, against Richer; and the Jansenists Nicole and Arnaud composed their celebrated work De la Perpétuité de la Foi on the Eucharist,
