Peter of Spain
Also known as: Pedro Hispano · Pierre d'Espagne
- 1He authored the Tractatus, a seminal textbook on Aristotelian logic.
- 2The work is also widely known by its later title, the Summulae Logicales.
- 3He is traditionally identified with Peter Juliani, who became Pope John XXI in 1276.
- 4Alternative historical theories suggest he may have been a Castilian Blackfriar.
Peter of Hispania was the author of the Tractatus, later known as the Summulae Logicales, an important medieval university textbook on Aristotelian logic.
Connections1
Historical influence on scholastic logic
His 'Summulae Logicales' remained a standard logical text that the Second Scholasticism engaged with and updated during their revival of medieval methods.
Peter of Hispania was a medieval philosopher best known for authoring the Tractatus, a foundational university textbook on Aristotelian logic later titled the Summulae Logicales. This work served as a standard pedagogical tool for teaching logic throughout the medieval period.
Frontispiece of work by Peter of SpainWikimedia Commons; Peter Damian; Own work; CC BY-SA 3.0; Wikimedia Commons: Category:Petrus HispanusPorphyrian tree according Petrus Hispanus tractatus II, ed. L.M. de Rijk, 20.Wikimedia Commons; J. Mittelstraß (ed.), Enzyklopädie Philosophie und Wissenschaftstheorie, Vol. 2 (A-B), Mannheim/Wien/Zürich 2005 (2nd ed.); CC BY-SA 3.0; Wikimedia Commons: Category:Petrus HispanusPorphyrian trees, left side: according Petrus Hispanus tractatus II, ed. L.M. de Rijk, 20., as given by Enzyklopädie Philosophie... Right side: acc. Sowa 2001Wikimedia Commons; J. Mittelstraß (ed.), Enzyklopädie Philosophie und Wissenschaftstheorie, Vol. 2 (A-B), Mannheim/Wien/Zürich 2005 (2nd ed.) Right side: acc. Sowa 2001; CC BY 2.5; Wikimedia Commons: Category:Petrus Hispanus There is a long-standing tradition that identifies him with Peter Juliani, the Portuguese scholar who ascended to the papacy as Pope John XXI in 1276. While this identification is widely accepted, it remains a subject of historical debate, with some scholars proposing alternative identities, such as a Castilian Blackfriar or the figure known as Petrus Ferrandi Hispanus.