Saint Francis de Sales (1567-1622) was a French Catholic bishop, theologian, preacher, and spiritual writer whose works became foundational texts of Christian devotional literature. Serving as Bishop of Geneva during the Counter-Reformation, Francis became renowned for his gentleness, wisdom, eloquence, and compassionate pastoral approach.His writings-including Introduction to the Devout Life and Treatise on the Love of God-emphasised practical spirituality, humility, patience, and the possibility of pursuing holiness within ordinary daily life. Canonised in 1665 and later declared a Doctor of the Church, Francis de Sales remains one of the most influential figures in Catholic spirituality and Christian devotional thought.