The Epistles of Dionysius.
Church History (Historia Ecclesiastica) · Eusebius of Caesarea
1. Besides these, many other epistles of Dionysius are extant, as those against Sabellius, addressed to Ammon, bishop of the church of Bernice, and one to Telesphorus, and one to Euphranor, and again another to Ammon and Euporus. He wrote also four other books on the same subject, which he addressed to his namesake Dionysius, in Rome.
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2. Besides these many of his epistles are with us, and large books written in epistolary form, as those on Nature, addressed to the young man Timothy, and one on Temptations, which he also dedicated to Euphranor.
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3. Moreover, in a letter to Basilides, bishop of the parishes in Pentapolis, he says that he had written an exposition of the beginning of Ecclesiastes. And he has left us also various letters addressed to this same person. Thus much Dionysius.
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