Most widely known is the saint's Introduction to the Devout Life, which, with the Imitation of Christ, is rightly considered the finest outline of Christian perfection. A friendship existed between him and St. Frances de Chantal. In cooperation with her he founded the Visitation Nuns in 1610.
Francis refused opportunities for advancement, including the cardinalate. In recognition of the Introduction and his other writings, Francis has been declared a doctor of the Church.
St. Francis developed a sign language in order to teach a deaf man about God. Because of this, he is the patron saint of the deaf.
On December 1622 de Sales was required to travel in the entourage of Charles Emmanuel I, Duke of Savoy, for the Duke's Christmas tour of his domain. Upon arrival in Lyon, he chose to stay in the gardener's hut at the Visitandine monastery in that city. While there he suffered a stroke, from which he died on 28 December 1622. More on St. Francis de Sales
Symbols: Bald man with a long beard wearing a bishop's robes holding a book; heart pierced with thorns or picture of the Virgin.