a Bohemian doctor and scientist, rector of the University of Prague, and official physician to the Holy Roman Emperors. The crater Marci on the far side of the Moon is named after him. Marci's studies covered the mechanics of colliding bodies, epilepsy, and the refraction of light, as well as other topics. Marci at some time came into possession of the Voynich Manuscript, apparently upon the death of its former owner, the alchemist Georg Baresch.
