Online Medieval Sources Bibliography

An Annotated Bibliography of Printed and Online Primary Sources for the Middle Ages

Source Details

Jeauneau, E., ed., Iohannes Scotus Eriugena Periphyseon Liber Primus (Turnhout: Brepols [Corpus Christianorum Continuatio Medievalis 161])

Text name(s): Periphyseon

Number of pages of primary source text: 111


Dates: 800 - 900

Archival Reference: 

Original Language(s): 

  • Latin


  • Original language included.

Translation Comments: 

Geopolitical Region(s): 

  • Europe


Record Types: 

  • Philosophic Work

Subject Headings: 

  • Philosophy / Theology
  • Theology - Scriptural / Exegesis
  • Classics / Humanism
  • Philosophy - Platonic / Neo-Platonic
  • Philosophy - Metaphysics


  • Index
  • Bibliography
  • Introduction


Written by John Scotus Eriugena, a ninth-century Irish scholar working in France under the auspices of Charles the Bald, Periphyseon (or, by its Latin title, the De divisione naturae) is a theological/philosophical text which organizes all of nature based on its relationship to the process of creation and discusses the soul’s relationship to God in terms heavily influenced by Platonic thought. In this work, which was condemned in the late 13th century as heretical, Eriugena discusses the Trinity and the Incarnate Word. This volume contains an edition of Book I of the Periphyseon, in which Eriugena discusses created and uncreated nature. The editor also contains an edition of an alternate version of the text.

Introduction Summary: 

The editor’s lengthy (90 pp) French introduction contains a thorough listing and description of the manuscripts in which the texts survive, and upon which this edition is based. He also notes the modern and early modern printed editions of the works, and sets out his principles of editing.

Cataloger: MCB