Under the Savoyard rule his family called itself Chateillon, Chatillon, or Chataillon. Having been educated at the age of twenty at the University of Lyon, Castellio was fluent in both French and Italian, and became an expert in Latin, Hebrew and Greek as well. Subsequently, he learned German as he started to write theological works in the various languages of Europe. Evidently his education, zeal and theological knowledge were so outstanding that he was considered to be one of the most learned men of his time, equal, if not superior, to John Calvin.Regarding Castellio, Voltaire wrote: We can measure the virulence of this tyranny by the persecution to which Castellio was exposed at Calvin's instancealthough Castellio was a far greater scholar than Calvin, whose jealousy drove him out of Geneva. Castellio later wrote that he was deeply affected and moved when he saw the burning of heretics in Lyon by the French Inquisition,  and at the age of twenty-four he decided to subscribe to the teachings of the Reformation.
In the spring of 1540, after witnessing the killings of the early Protestant martyrs, he left Lyon and became a missionary for Protestantism. ANTIQUE 1562 GERMAN LEATHER BOOK" is in sale since Sunday, April 29, 2018. This item is in the category "Books\Antiquarian & Collectible". The seller is "nat-9315" and is located in Montreal, Quebec. This item can be shipped worldwide.