Petrus hispanus portugalensis? Elementos para uma diferenciaçao de autores

Abstract

The personality of Petrus Hispanus Portugalensis (13th century) is quite polifacetic: philosopher, physician, scientist, politician and pope. This gave reason for confounding Petrus Hispanus with other people. The author of this article studies some aspects related with the life, writings and personality of Petrus Hispanus in order to distinguish him from the people he has been confounded with. The author concludes that there are three differents persons: I) Petrus Hispanus, 0. P.; 2) Petrus Hispanus Portugalensis; 3) Petrus Hispanus, physician, whom some historians confounded with Petrus Julianus, who became a pope with the name of John' XXI.