マインツ大司教
Lux was born in Obernburg am Main, a village belonging to the Electorate of Mainz, as a farmer's son. However, his parents managed to finance his studies at the University of Mainz (in the Archbishopric of Mainz of the Holy Roman Empire, nowadays in Rhineland-Palatinate), where he became a "Dr. phil." with his Latin dissertation on the notion of "enthusiasm".