The influence exercised by Baius, and the ideas that he implanted in the minds of his students had a very disturbing effect on the University of Louvain. Amongst those who fell under the sway of Baianism at this period the best known if not the ablest was Cornelius Jansen (1585-1638). He studied at Utrecht, Paris, and Louvain. While in this latter place he formed a resolve to join the Society of Jesus, but for some reason or another he was refused admission, a slight which accounts in some measure for the continued antipathy he displayed during his life towards the Jesuits. At Louvain, too, he was associated very closely with a brilliant young French student, John du Verger de Hauranne (1581-1643), better known as the Abbot of St. Cyran, whom he accompanied to Paris and afterwards to Bayonne, where both lived for almost twelve years. During these years of intimate friendship they had many opportunities of discussing the condition and prospects of the Catholic Church, the prevalence of what they considered Pelagian views amongst theologians, the neglect of the study of the Fathers, above all of St. Augustine, the laxity of confessors in imparting absolution and allowing their penitents to receive Holy Communion, and the absolute necessity of returning to the strict discipline of the early Church. In 1617 the two friends separated, Jansen returning to Louvain, where he was appointed to a chair of scriptural exegesis, and du Verger to Paris, where he took up his residence though he held at the same time the commendatory abbacy of St. Cyran. As professor of Scripture Jansen showed himself both industrious and orthodox, so that in 1636 on the nomination of Philip IV. of Spain he was appointed Bishop of Ypres. From that time till 1639, when he passed away, he administered the affairs of his diocese with commendable prudence and zeal. During the greater portion of his life he had devoted all his spare moments to the study of the works of St. Augustine, especially those directed against the Pelagians, and he had prepared a treatise on Grace, in which treatise he claimed to have reproduced exactly the teaching of St. Augustine. This work was finished but not published when he took seriously ill, and the manuscript was handed over by him to some friends for publication. Before his death, however, he declared in presence of witnesses that "if the Holy See wishes any change I am an obedient son and I submit to that Church in which I have lived to my dying hour."[1] Notwithstanding various efforts that were made to prevent publication Jansen's book /Augustinus/ was given to the world in 1640.