مرسوم ميلانو
Mirocles was the bishop of Milan when in 313 the Emperors Constantine I and Licinius issued the Edict of Milan which proclaimed the religious toleration in the Roman Empire. After the Edict of Milan, Mirocles started the erection of the basilica vetus, which was the first cathedral of the town and that was placed on the area nowadays occupied by the present Cathedral of Milan.