High Quality Content by WIKIPEDIA articles! Johannes Matthaeus Wacker von Wackenfels (1550 - 1619) "was an active diplomat, scholar and author, with an avid interest in history and philosophy. A follower of Neostoicism, he sought to resolve the doubts he still had about his conversion to Catholicism", according to STUDIA RUDOLPHINA - Bulletin of the Research Center for Visual Arts and Culture in the Age of Rudolf II.He was born in Konstanz (Constance) and studied in Strasbourg, Geneva and Padua. He wrote courtly poems and his manuscripts contain many philological and historical studies (examples:- "Dissertatio de nummo Ptolomaei" - which he also illustrated, presently held at the Öesterreichische Nationalbiliothek in Vienna, various philosophical treatises and "De cruce et fruce veterum" - known only from correspondence).