This French saint, who increased devotion to the Sacred Heart of Jesus, spent her life in Burgundy. A pious child, Margaret was bedridden from ages 9 to 15 with a rheumatic illness. She gradually understood a call to religious life, and already had a mature prayer life when she entered a Visitation convent near Lyon in 1671. Between 1673 and 1675, she received four visions of Christ’s heart in flames, burning with love for humanity, with instructions to promote a special feast and First Friday devotions. Margaret, aided by a Jesuit priest, overcame disbelief and jealousy within her own convent and saw the feast celebrated there and in other French Visitation convents in her lifetime. She was canonized in 1920.