Driven from Alsace by the marauding bands of Count Mansfeld, he fled to Ingolstadt where he began to study law.
He reorganized the university of Vienna and encouraged the development of the universities of Ingolstadt and Freiburg.
Having studied at Ingolstadt, Vienna, Cracow and Paris, he returned to Ingolstadt in 1507, and in 1509 was appointed tutor to Louis and Ernest, the two younger sons of Albert the Wise, the late duke of BavariaMunich.
On the 26th of September, its deployment beyond the mountains was complete, and as Napoleon did not know of Mack's intention to stay at Ulm and had learned that the Russian advance had been delayed, he directed his columns by the following roads on the Danube, between Donauworth and Ingolstadt, so as to be in a position to intervene between the Austrians and the Russians and beat both in detail.
In reply he immediately wrote: " You do not inform me what has rendered necessary such an extraordinary measure which weakens and divides my troops "- and - " I cannot quite grasp the meaning of your letter yet, I should have preferred to see my army concentrated between Ingolstadt and Augsburg, the Bavarians in the first line, with the duke of Danzig in his old position, until we know what the enemy is going to do.