Freiburg University was facing a decline at the beginning of the 17th century. It was on 16 November 1620, that Archduke Leopold summoned the Jesuit Fathers, first of all, the "most excellent by far" Christoph Scheiner. In the spring of 1621, Scheiner was recalled for reasons confirmed to be unknown: in fact it was Archduke Karl's wish to have Scheiner as his father confessor. Archduke Karl had travelled with Scheiner from Brixen to Vienna, from where he did not return to Neisse until sometime between 1621 and 1622. In February 1623, Scheiner was appointed Superior of the future college. Then the Spanish King Philipp IV chose Karl of Austria for the office of a vice-king of Portugal. Archduke Karl travelled to Madrid. Scheiner had to travel to Rome, to instigate the foundation of the new college in Neisse. Scheiner stayed in Rome longer than his duty required. In "Rosa Ursina sive Sol", he wrote that he had been sent to Rome "ad summum pontificem, ob certa peragenda negotia" (Latin meaning "to the pontifical summons..."). Other theories, contending that Scheiner had been summoned to Rome as an expert astronomer because of Galilei, or that he felt his transfer to Neisse was a punishment, have not been confirmed. It was only 13 years later, that he returned to Neisse via Vienna, where he stayed for some time.