Liber constitutionum Sanctae Matris Ecclesiae

work by Albornoz

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June 30, 2026

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The Liber constitutionum Sanctae Matris Ecclesiae, also known as the Constitutiones Aegidianae, was a legal code published around 1357 by Cardinal Gil Álvarez Carrillo de Albornoz. This work remained in effect within the Papal States until the early 19th century. It was part of the broader development of canon law, which provided the primary source of ecclesiastical legislation for the Roman Catholic Church from the Middle Ages until 1917. The Corpus Juris Canonici, a collection of six legal compilations, served as this foundational body of law. Albornoz's code was instrumental in re-establishing papal authority in Italy and paving the way for the papacy's return from Avignon.12

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Gil Álvarez Carrillo de Albornoz
…return to Avignon, where his Liber constitutionum Sanctae Matris Ecclesiae (“Book of the Constitution of Holy Mother Church”), also known as the Constitutiones aegidianae, was published. This legal code, or constitution, remained in force in the Papal States until the early 19th century.
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…return to Avignon, where his Liber constitutionum Sanctae Matris Ecclesiae (“Book of the Constitution of Holy Mother Church”), also known as the Constitutiones aegidianae, was published. This legal code, or constitution, remained in force in the Papal States until the early 19th century.
Read More