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 Tertius (Turnhout: Brepols [Corpus Christianorum Continuatio Medievalis 163])

Text name(s): Periphyseon

Number of pages of primary source text: 176


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


  • 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 III of the Periphyseon, in which Eriugena discusses metaphysics, which are heavily influenced by the works of Plato.

Introduction Summary: 

The editor’s brief (40pp) French introduction considers the subject of Book III, Eriugena’s conception of physics and metaphysics. The editor also provides an analysis of the manuscripts in which the text survives, and upon which this edition is based, including the marginalia and glosses in various manuscripts.

Cataloger: MCB