Eusebii Pamphili Contra Hieroclem Et Marcellum Libri is a book written by Eusebius, a Christian historian and bishop of Caesarea in the 4th century AD. The book is a collection of two treatises, Contra Hieroclem and Contra Marcellum, in which Eusebius refutes the teachings of two heretical leaders of his time.In Contra Hieroclem, Eusebius argues against the teachings of Hierocles, a Roman governor who had converted to Christianity but later became...