text: Jean Ruel was the dean of the Faculty of Medicine and physician to King Francis I of France. He perfected the Latin translation of the Materia Medica directly from the "princeps" edition. He tried to develop a translation joining philology, botany and medicine. This work, printed in 1516 by Henri Estienne/Stephano, became very popular, having 20 editions during the 16th century. He published editions until 1537, printed by Simon de Colines.
  From this point, Latin was the preferred language for presenting De Materia Medica, and Ruel's editions became the basis from which many other important authors would start to create their own Materia Medica. Ruel was also teacher of two great De Materia Medica authors: Michel de Villeneuve and Andres Laguna.