Our fourth talk is now live on our YouTube Playlist “YRI Lecture Series”!
This proposal examines the clandestine chain of transmission of Christianismi Restitutio (1553), a book by Michael Servetus (1511-1553) rejecting the Trinity as ungrounded in Scripture. Published, then promptly banned and burned, it spread covertly across Europe through smuggled fragments, near-complete copies, and custom manuscript workshops. From Geneva, where it was officially eradicated, the text reached sixteenth-century Transylvania, where it was reprinted. The aim of this lecture is to compare how attitudes about anti-Trinitarianism varied from West to Central-Eastern Europe, and how knowledge was both covert and public, banned yet published.
Restitutio was groundbreaking for its era. It challenged the Trinity through Servetus’s comparative translations from Hebrew, Greek, and Latin, alongside theology informed by medicine. A skilled physician and anatomist, from the circle of Vesalius, Servetus integrated medical insights into his theology. He offered the first accurate description of blood circulation, a discovery sometimes still attributed to Harvey. For Servetus, breathing and blood flow proved God’s unity: just as the body unites with its spirit through the blood, so God is one.
This highly controversial book made its way to Transylvania through Giorgio Biandrata (1515-1588), an Italian who became the personal physician of Queen Bona Sforza of Poland (1494-1557), then her daughter Queen Isabella Jagiellon (1519-1559), and then her son King John Sigismund Zápolya (1540-1571). Once settled at the Transylvanian court, Biandrata, who had a keen interest in theology, just like Servetus, got involved in debates about the Reformation. There, he eventually befriended Transylvanian theologian Ferenc Dávid (1510-1579), to whom he lent his copy of Restitutio. In 1568 and 1569, they edited and published a number of works which effectively republished lengthy passages of Christianismi Restitutio, a book that was highly controversial and banned everywhere else in Europe..