Jean-Marie-Baptiste Vianney, T.O.S.F. (8 May 1786 – 4 August 1859), commonly known in English as St. John Vianney, was a French parish priest who is venerated in the Catholic Church as a saint and as the patron saint of parish priests. He is often referred to as the “Curé d’Ars“ (i.e., Parish Priest of Ars), internationally known for his priestly and pastoral work in his parish in Ars, France, because of the radical spiritual transformation of the community and its surroundings. Catholics attribute this to his saintly life, mortification, his persevering ministry in the sacrament of confession, and his ardent devotion to the Blessed Virgin Mary. His feast day is 4 August.