Castro second opus, " De iusta hereticorum punitione libri III " ( Salamanca 1547 ), dedicated to emperor Charles V, made him renowned as " flagellum of heretics " ( " azote de herejes " ).
12.
One of these articles was " Tractatus Contra Perfidiam Jud�orum "; the other, " De Jud�is Erroribus ex Talmuth "; they were published together as " Hebr�omastix " ( Zurich, 1552; Frankfort-on-the-Main, 1602; Hamburg, n . d . ), printed in the " Bibliotheca Magna Veterum Patrum ", Lyons, vol . xxvi ., and Cologne, 1618; they were also translated into Spanish under the title " Azote de los Hebreos ".
