Centenary Paper: La Sátira de infelice e felice vida, el Tostado y una versión perdida de sus Diez questiones vulgares.

Critics have abundantly pointed out that the Sátira de infelice e felice vida de don Pedro de Portugal makes abundant use of Alonso Fernández de Madrigal's Diez questiones vulgares , which are in turn an extract from his monumental Comento a Eusebio. The present work deals with the detailed comparison of these three texts from the mid-fifteenth century; the result of this observation shows that don Pedro is following, with notorious fidelity, the text of the Questiones , in a closeness that he never maintains with the Comento , and therefore the former is necessarily his source. However, in these same glosses the constable presents information that is absent in the former and clearly comes from the latter. We propose as a hypothesis the existence of an intermediate text by Madrigal between the two texts we are working on, now lost, which served as a source for the Condestable. [ABSTRACT FROM AUTHOR]