The German naturalist, botanist and doctor of medicine Philipp Jakob Sachs von Löwenheim (1627-1672) studied in Leipzig until the master's degree. Afterwards he visited the most famous universities and physicians of the Netherlands, France and Italy and obtained his doctorate in Padua in 1651 as Dr. med. med. As a result, he operated in the Silesian Wroclaw (now Poland) a medical practice. In 1658 he was admitted to the German Academy of Natural Sciences "Academia Naturae Curiosum". In order to fulfill the requirements of the statute, he wrote a scientific paper and chose a 670-page treatise on the Rebstock out. He called the work published in 1661 " Ampelographia "And thus justified this concept of the theory of the vine, which, however, only 150 years later prevailed.
Other works by him are "Oceanus macro-microcosmicus" (1664) and "Gammarologia" (1665). In 1671 he was appointed in his hometown Stadtphysicus (personal physician of important personalities). He founded the world's oldest medical and scientific journal called "Ephemerides Academiae naturae curiosorum" and took over its editorial staff. Through his connections in Wien succeeded Sachs von Löwenheim the Austrian Emperor Leopold I (1640-1705) interested in the Academy and in 1670 to obtain recognition as an imperial institute. In 1687, this even received the imperial title "Sacri Romani Imperii Academia Caesarea Leopoldina", which was associated with far-reaching rights and privileges.