Gratian completed the Decretum about 1151, and probably survived some years, but I have not met with the date of his death.
Another term to be considered is decretum, the old Latin equivalent for δόγμα.
Decretum fit, uti decem legati regnum, quod Micipsa obtinuerat, inter Jugurtham et Adherbalem dividerent.
Marius post bellum Numidicum iterum consul creatus bellumque ei contra Cimbros et Teutones decretum est.
The first part of the Decretum was entitled De jure naturae et constitutionis.