Saint Francis’ intuitive approach was elaborated into a philosophical vision by subsequent Franciscan theologians, such as Bonaventure of Bagnoregio and John Duns Scotus, leading figures in the Franciscan intellectual tradition. The philosophy of Scotus is founded upon the primacy of the Incarnation, and may have been a particularly important influence on Sahagún, since Scotus's philosophy was taught in Spain at this time. Scotus absorbed the intuitive insights of St. Francis of Assisi and his devotion to Jesus Christ as a human being, and expressed them in a broader vision of humanity.