St. John Eudes (1601–1680) was born in Normandy, France, to a farming family. His devout parents consecrated him to the Blessed Virgin Mary when he was a child. At the age of fourteen he took a vow of chastity, and studied under the Jesuits where he earned the reputation of being a brilliant student. After his ordination to the priesthood he ministered to his countrymen who were suffering from an outbreak of the plague. He later became a missionary priest, traveling throughout France and preaching strong sermons to large crowds in churches, open fields, and in the courts of the royalty and nobility. The force of his sermons was bolstered by his great sanctity; he was considered to be a prodigy and the greatest preacher of his age. He was instrumental in spreading devotion to the Sacred Heart of Jesus and the Immaculate Heart of Mary throughout France during a time when religious fervor had grown cold. He was responsible for influencing the Church to establish these two devotions with liturgical feasts, himself composing their Mass and Office. St. John Eudes founded several organizations including the Congregation of Our Lady of Charity of the Refuge, which provided a new life for repentant prostitutes, and the Society of Jesus and Mary (the Eudist Fathers) which specialized in improving the training of seminarians by promoting greater virtue and dedication to the preaching of parish missions. His feast day is August 19th.