After his death, his son, Valentinian Ii., an infant of four years of age, with his half-brother Gratian a lad of about seventeen, became the emperors of the West.
They made Milan their home; and the empire was nominally divided between them, Gratian taking the trans-Alpine provinces, whilst Italy, Illyricum in part, and Africa were to be under the rule of Valentinian, or rather of his mother, Justina.
And Gratian as a quadrilateral hall with four huge granite columns (now removed) in the centre, it was converted into a church about the close of the 4th century, and restored by Bishop Nicetius about 550.
Then comes the law of Gratian already noticed.
GRATIAN (FLAVIUS GRATIANUS AUGUSTUS), Roman emperor 375-3 8 3, son of Valentinian I.