Bonaventure (born Giovanni di Fidanza; 1221 – 15 July 1274) was an Italian Catholic Franciscan bishop, cardinal, scholastic theologian and philosopher.
The seventh Minister General of the Order of Friars Minor, he also served for a time as Bishop of Albano. He was canonised on 14 April 1482 by Pope Sixtus IV. In 1588 Pope Sixtus V declared him a Doctor of the Church named as the "Seraphic Doctor" (Latin: Doctor Seraphicus). His feast day is 15 July.
Many writings from the Middle Ages once attributed to him have been subsequently re-classified under the name "Pseudo-Bonaventure".
He was born at Civita di Bagnoregio, not far from Viterbo, then part of the Papal States. Almost nothing is known of his childhood, other than the names of his parents, Giovanni di Fidanza and Maria di Ritella. Bonaventure reports that in his youth he was saved from an untimely death by the prayers of Francis of Assisi, which is the primary motivation for Bonaventure's writing the vita.
He entered the Franciscan Order in 1243 and studied at the University of Paris, possibly under Alexander of Hales, and certainly under Alexander's successor, John of Rochelle. In 1253 he held the Franciscan chair at Paris. A dispute between seculars and mendicants delayed his reception as Master until 1257, where his degree was taken in friendship with Thomas Aquinas. Bonaventure also met and was a friend of the cardinal Hugh of Saint-Cher, by whom he was influenced.
Three years earlier his fame had earned him the position of lecturer on The Four Books of Sentences—a book of theology written by Peter Lombard in the twelfth century—and in 1255 he received the degree of master, the medieval equivalent of doctor.
After having successfully defended his order against the reproaches of the anti-mendicant party, he was elected Minister General of the Franciscan Order. On 24 November 1265, he was selected for the post of Archbishop of York; however, he was never consecrated and resigned the appointment in October 1266.
During his tenure, the General Chapter of Narbonne, held in 1260, promulgated a decree prohibiting the publication of any work out of the order without permission from superiors. This prohibition has induced modern writers to pass severe judgment upon Roger Bacon's superiors, who were assumed to be envious of Bacon's abilities. However, the prohibition enjoined on Bacon was a general one, which extended to the whole order. Its promulgation was not directed against him, but rather against Gerard of Borgo San Donnino. In 1254 Gerard had published without permission a work, Introductorius in Evangelium æternum (An Introduction to the Eternal Gospel) that was judged heretical within a year. Thereupon the General Chapter of Narbonne promulgated their decree, identical with the "constitutio gravis in contrarium" Bacon speaks of. The prohibition was rescinded in Roger's favour unexpectedly in 1266.
Bonaventure was instrumental in procuring the election of Pope Gregory X, who rewarded him with the title of Cardinal Bishop of Albano, and insisted on his presence at the great Second Council of Lyon in 1274. There, after his significant contributions led to a union of the Greek and Latin churches, Bonaventure died suddenly and under suspicious circumstances. The 1913 edition of the Catholic Encyclopedia has citations that suggest he was poisoned, but no mention is made of this in the 2003 second edition of the New Catholic Encyclopedia.
He steered the Franciscans on a moderate and intellectual course that made them the most prominent order in the Catholic Church until the coming of the Jesuits. His theology was marked by an attempt completely to integrate faith and reason. He thought of Christ as the "one true master" who offers humans knowledge that begins in faith, is developed through rational understanding, and is perfected by mystical union with God.
In the year 1434, 160 years after his death, his body was moved to a new church that was considered more fitting. Upon doing so, the head was found to be entirely incorrupt. "The hair, lips, teeth, and tongue were perfectly preserved and retained their natural colour. The people of Lyon were profoundly affected by this miracle, and they chose Bonaventure for the patron of their city. The movement, already afoot, to obtain his canonization received thereby a new and powerful impetus." However, a century later in 1562, the city of Lyon was captured by Huguenots, who burned Bonaventure's body in the public square. In the 19th century, during the "dechristianization of France" during the French Revolution, the urn containing the incorrupt head was hidden, after which the church was razed to the ground. The urn has never been recovered. The only extant relic of Bonaventure is the arm and hand with which he wrote his Commentary on the Sentences, which is now conserved at Bagnoregio, in the parish church of St. Nicholas.
Bonaventure was formally canonised in 1482 by the Franciscan Pope Sixtus IV, and ranked along with Thomas Aquinas as the greatest of the Doctors of the Church by another Franciscan, Pope Sixtus V, in 1587. Bonaventure was regarded as one of the greatest philosophers of the Middle Ages. His works, as arranged in the most recent Critical Edition by the Quaracchi Fathers (Collegio S. Bonaventura), consist of a Commentary on the Sentences of Lombard, in four volumes, and eight other volumes, including a Commentary on the Gospel of St Luke and a number of smaller works; the most famous of which are The Mind's Road to God (Itinerarium mentis in Deum), an outline of his theology or Brief Reading (Breviloquium), Reduction of the Arts to Theology (De reductione artium ad theologiam), and Soliloquy on the Four Spiritual Exercises (Soliloquium de quatuor mentalibus exercitiis), The Tree of Life (Lignum vitae), and The Triple Way (De Triplici via), the latter three written for the spiritual direction of his fellow Franciscans.
The German philosopher Dieter Hattrup denies that Reduction of the Arts to Theology was written by Bonaventure, claiming that the style of thinking does not match Bonaventure's original style. His position is no longer tenable given recent research: the text remains "indubitably authentic".
A work that for many years was falsely attributed to Bonaventure, De septem itineribus aeternitatis, was actually written by Rudolf von Biberach (c. 1270 – 1329).
For Isabelle of France, the sister of King Louis IX of France, and her monastery of Poor Clares at Longchamps, Bonaventure wrote the treatise Concerning the Perfection of Life.
The Commentary on the Sentences, written at the command of his superiors when he was twenty-seven, is Bonaventure's major work and most of his other theological and philosophical writings are in some way dependent on it. However, some of Bonaventure's later works, such as the Lectures on the Six Days of Creation, show substantial developments beyond the Sentences.
Bonaventure wrote on almost every subject treated by the Scholastics and his writings are substantial. A great number of them deal with faith in Christ, God and theology. No work of Bonaventure's is exclusively philosophical, a striking illustration of the mutual interpenetration of philosophy and theology that is a distinguishing mark of the Scholastic period.
Much of Bonaventure's philosophical thought shows a considerable influence by Augustine of Hippo, so much so that De Wulf considers him the best medieval representative of Augustinianism. Bonaventure adds Aristotelian principles to the Augustinian doctrine, especially in connection with the illumination of the intellect and the composition of human beings and other living creatures in terms of matter and form. Augustine, who had introduced into the west many of the doctrines that would define scholastic philosophy, was a critically important source of Bonaventure's Platonism. The mystic pseudo-Dionysius the Areopagite was another notable influence.