Printed news reports circulated, in the 16th and 17th century, which revealed the sudden conversion to Christianity – some were real, but several were invented – of powerful monarchs from abroad. How were such announcements written or invented? Different scenarios existed. There was genuine news, to which were added cosmetic and false details, or sometimes overly enthusiastic interpretations. There was false news, although invented, arguably, to simplify the reporting of real upheavals on the scene of world affairs – such as the entrance on the historical stage of the Safavid dynasty, fantasized in the media as the conversion of Ismail I (in 1508) or Abbas I (in 1606). The strange case of La conversion de trois grands rois [The Conversion of Three Great Kings] helps in distinguishing two falsification mechanisms, or in this case two steps: in 1571, it was the fraudulent mixing of excerpts from genuine Jesuit letters; in 1588, 1608 and 1609, the same news report circulated anew, with all of its dates replaced by current ones. Truth and fiction thus intertwined better than they clashed, and paradoxically at the very time when genuine and current information about Persia, India and Indonesia was starting to circulate in Europe. The existence of such chimerical news also indicates that, as the industry of news reporting was developing, the particular desirability of reports on high-level conversions helped them prevail over other news more genuine, yet less appealing.