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Bio-Bibliographical Guide to Medieval and Early Modern Jurists

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Report No. r025

Alvarus Pelagius



Alternative Names

Alvaro Pelayo



Better known for his accomplishments as a theological writer and papal polemicist, Alvarus had according to his own assertions studied canon law at Bologna under Guido de Baysio (fl. 1300). Guido in turn referred to him once as decretorum doctor. He began teaching at Bologna in the first years of the thirteenth century and participated in several disputations, as Johannes Andreae remarked in his Novelle on Liber extra and the Sextus. None of these Questiones, however, have been found. However, there may survive a treatise of his on sacrilege. In 1304, Alvaro renounced his benefices and entered the spiritual wing of the Franciscans. As a staunch defender of the papacy against Louis of Bavaria, he became a close advisor of Pope John XXII. In 1333, received the bishopric of Silves in his native Portugal. He died in 1349.



No. 1

Tractatus de sacrilegio. Alvarus’s authorship of this tractatus is uncertain.


Text(s) – Manuscripts

No. 1

Tractatus de sacrilegio.


El Escorial, Bibl. San Lorenzo e.I.5, fol.103va–104ra


Segovia, Bibl. Cabildo Vitr. 19 n.11, fol. 62va–63vb



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