
Corpus of Canon Law, Second Part: Collections of Decretals
Corpus Iuris Canonici, Pars Secunda: Decretalium Collectiones
The Decretalium Collectiones is the second part of Aemilius Friedberg's standard 1879 critical edition of the Corpus Iuris Canonici. It contains five collections: the Decretales Gregorii IX (Liber Extra, compiled by Raymond of Penyafort at Pope Gregory IX's direction, 1234, the central canon law collection of the medieval Western church); the Liber Sextus of Boniface VIII (1298); the Clementinae of Clement V (promulgated 1317); the Extravagantes of John XXII; and the Extravagantes Communes. The main text is set in two columns per page with critical apparatus below, columns numbered sequentially 1–1340. This photomechanical reprint (Graz, 1959) reproduces the 1879 Leipzig (B. Tauchnitz) edition.
Author

Raymond of Penyafort
Raimundus de Penyafort