Joannes Andreae

Joannes Andreae was a prominent canonist, a scholar of canon law, who lived around the 14th century. Canon law is the codified law that governs a church. Andreae was a lay professor of decretals at the University of Bologna and is considered the father of the history of canon law. He was part of the classical period of glossators, who were commentators on canon law texts. His work followed Gratian's Decretum, a foundational text in canon law compilation. Andreae's contributions were significant in the development and systematic study of canon law during a period when the papacy was situated in Avignon and during the Western Schism.123