orig. François-Joseph le Clerc du Tremblay
born Nov. 4, 1577, Paris, France
died Dec. 18, 1638, Rueil
French mystic and religious reformer.
He joined the Capuchins in 1599. His fervent ambition to convert European Protestants to Roman Catholicism coincided with cardinal de Thirty Years' War , which Joseph's policies did much to bring about.