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 Quartus (Turnhout: Brepols [Corpus Christianorum Continuatio Medievalis 164])

Text name(s): Periphyseon

Number of pages of primary source text: 168


Dates: 800 - 900

Archival Reference: 

Original Language(s): 

  • Latin


  • Original language included.

Translation Comments: 

Geopolitical Region(s): 

  • Europe


Record Types: 

  • Philosophic Work

Subject Headings: 

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


  • Index
  • Bibliography
  • Introduction


Written by John Scotus Eriiugena, 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 IV of the Periphyseon, in which Eriugena discusses the nature of the human soul and mind. The editor also includes an edition of an alternate version of the text.

Introduction Summary: 

The editor’s lengthy (70 pp) French introduction considers the subject of Book IV, noting that Eriugena’s conception of human nature is drawn from the Bible and from dialectic, as well as from patristic sources such as Ambrose and Gregory of Nyssa. The editor also considers the authenticity of the book, and the manuscripts in which the text survives, and upon which this edition is based, including the marginalia present in various manuscripts.

Cataloger: MCB