Leaving France for Germany, the Nolan made his first halt at "_Mez_, or _Magonza_, which is an archiepiscopal city, and the first elector of the Empire";[89] it is certainly Mayence. There he remained some days; but not finding either there or at "_Vispure_, a place not far from there," any means of livelihood such as he cared for, he went on to Wittenberg in Saxony. "Vispure" has caused considerable exercise of ingenuity among Bruno's biographers. The best explanation seems to be that of Brunnhofer, that it represents Wiesbaden, which is not far from Mayence, and is still popularly known as Wisbare or Wisbore; but there may also be a telescoping of the words Wiesbaden and Marburg. Bruno was certainly at the latter town, but it is of course a long distance from Mayence. On the 1st of July 1586, Petrus Nigidius, Doctor of Law and Professor of Moral Philosophy, was elected Rector of the university at Marburg. In the roll of students matriculated under his rectorship stands as eighth name that of "_Jordanus Nolanus_ of Naples, Doctor of Roman Theology," with the date July 25, 1586, and the following note by the rector:--"When the right of publicly teaching philosophy was denied him by me, with the consent of the faculty of philosophy, for weighty reasons, he blazed out, grossly insulting me in my own house, protesting I was acting against the law of nations, the custom of all the universities of Germany, and all the schools of humanity. He refused then to become a member of the university,--his fee was readily returned, and his name accordingly erased from the album of the university by me." The name could still be read through the thick line drawn across it, and some later rector, when Bruno had become more famous, re-wrote the name above, and cancelled the words "with the consent of the faculty of philosophy" in Nigidius' note.[90] The "weighty reasons" for which Bruno was driven from Marburg may have been merely his description of himself as a Doctor of "Roman Theology" at a Protestant university; or perhaps an attack upon Ramus at a place where the Ramian Logic had many adherents; or the Copernican system taught by him, which was as firmly opposed by Protestants as by Catholics. In any case "the Knight-Errant of Philosophy" departed sorrowfully and came to Wittenberg, where he found, for the third time, a respite from his journeyings. On the 20th August 1586 he matriculated at the university,[91] and there remained for nearly two years. Then, as now, the Protestant Church in Germany was divided into two parties, the Lutheran and the Calvinist or Reformed Churches. Melanchthon's attempt to unite the two--he himself belonged to the latter--brought upon his head the "formula of concord," better known as the "formula of discord," because of the disputes it caused. Among other things it condemned the views of the Calvinists on the person of Christ, their denial of his "Real Presence" in the bread and wine of the communion