St. Robert Bellarmine
Jesuit Cardinal and Doctor of the Church; called "champion of the faith and overthrower of heresies" for his monumental Controversies defending Catholic doctrine.
Preface and Praise of Sacred Scripture
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Chapter IV: The Judgments and Examples of the Fathers
— Called "champion of the faith and overthrower of heresies"; his Controversies called impenetrable, incomparable, the wall and bulwark of Catholic truth
"the most illustrious Bellarmine, champion of the faith and overthrower of heresies, did solidly and exactly in his Controversies"