Work dossier · summary and historical context
The work transmitted under the name of Eutherius of Thyanensis is a Latin theological treatise, likely translated from a lost Greek original, dating to the early fifth century (c. 430–435). It engages with the Nestorian controversy, defending the position of Nestorius and opposing the Christological formulations of Cyril of Alexandria. The text survives only in Latin manuscripts and was cited in medieval florilegia, but never entered standard patristic collections. Its authorship remains disputed, and the lack of Greek witnesses complicates reconstruction of the original argument. The present edition is based on a single printed source (OGL-PL) and does not collate all known manuscripts.
The work is significant as a rare surviving witness to the Nestorian perspective in the early Christological debates, offering insight into the arguments of Eutherius and his circle. Its disputed authorship and fragmentary transmission highlight the challenges of reconstructing non-Chalcedonian traditions. The text's use in medieval florilegia shows its later reception, though it remained marginal in patristic studies.
Eutherius was bishop of Tyana in Cappadocia and a supporter of Nestorius during the Christological controversies of the early fifth century. The work is usually dated to c. 430–435, based on its theological content and Eutherius's known activity. It survives only in Latin manuscripts, likely translated from a lost Greek original; no Greek witness is known. The text was cited in medieval florilegia and by later controversialists, but never entered standard patristic collections, limiting its influence to specialized theological circles. The ascription to Eutherius is traditional but not universally accepted, and the work's transmission is fragmentary. The present edition is based on a single printed source (OGL-PL) and does not collate all known manuscripts.
Apparatus · what the pipeline recorded
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