[1] Perlach was the court astrologer to Archduke Ferdinand, later Ferdinand I, Holy Roman Emperor, in addition to being a practicing physician and a lecturer of mathematics and astrology at the University of Vienna.
[2] Perlach is notable for his support of the use of almanacs, having lectured on their importance and usage.
His lectures were printed in outline form in 1519 and in full commentary in 1551.
[3] Perlach lectured on mathematics from 1515 to 1549 as well as astrology and its application in medicine.
His tombstone is built into the wall of the St. Stephen's Cathedral in Vienna.