In Belgium the record was still one of trouble and vicissitude. They had, when Alva had "pacified" the province, opened a number of houses, which the townsfolk (as at Antwerp and Liège) threatened to burn. Then, when Don John, Philip's half-brother, was defeated in 1578, the Jesuits refused to take the oath imposed by the States and were expelled from Antwerp and other centres. They began to recover to some extent under the Duke of Parma, but had to witness the secession of the northern provinces and the formation of a new Protestant power, Holland, which was destined to give them trouble. At Louvain they maintained a struggle with the university similar to that at Paris. They at last tripped up the celebrated Michel de Bay (Baius), rector of the university, and sent their brilliant young theologian, Bellarmine, who was then only thirty years old, to enter into a prolonged duel with him. When, at last, they induced Rome to take a serious view of the errors of Baius, and Father Toledo was sent by the Pope to secure his submission, they began to rise from the lowly position in which the university had kept them. The Catholics of Austria and Southern Germany continued to oppose and intimidate them in spite of the devoted exertions of Canisius. They were fiercely assailed at Gratz, Prague, Innsprück, and Vienna. The Emperor Maximilian was even induced to forbid their Vienna college to grant degrees or compete in lectures with the university, though the Jesuits soon got the restriction removed. It appears that they announced lectures on the same subjects and at the same hours as those of the university, and, as always, charged no fees. This was one of the chief grievances of the universities, especially as the Jesuits palpably trusted to obtain control of the universities themselves. Another grievance, which we have noticed in the Parisian indictment, is that they somehow acquired the property of older religious orders. One of many instances of this occurs in the present period. They opened a college at Freiburg, and were invited to work in the Swiss cantons. For the beginning of their mission the Pope assigned them the revenues of the abbey of Marsens, and Canisius soon had a centre for attacking Calvinism in Switzerland. The Polish colleges continued to flourish, as we shall presently realise, under King Stephen Bathori. The most interesting adventure under the rule of Mercurian is the attempt to penetrate Sweden. The principles of the Reformation had been cordially received in Sweden, and it seemed to King John III. that peace could be secured only by some kind of compromise between the old faith and the new. John was, however, married to the sister of the Queen of Poland, and the Jesuits, who were sternly forbidden to enter the kingdom, saw in this a means of outwitting the vigilant Protestants. The combination of women and Jesuits was the supreme agency in checking the progress of the Reformation in Europe.