Decretum Gratiani
A Dictionary of Law · Henry Campbell Black · 1891
A Dictionary of Law
Gratian’s decree, or decretum. A collection of ecclesiastical law in three books or parts, nade in the year 1151, by Gratian, a Benedictine monk of Bologna, being the oldest as well as the first in order of tie collections which together form the body of the Roman eanon law.
1 Bl. Comm. 82; 1 Reeve, Eng. Law, 67.