In 1964 Rosario Soraci published a study of conubia between Romans and Germans from the fourth to the sixth century A.D.Although the title of the work might suggest that its concern was to be with such marriages throughout the period, in fact its aim was much more restricted. Beginning with a law issued by Valentinian I in 370 or 373 to the magister equitum Theodosius (C.Th. 3.14.1), which banned on pain of death all marriages between Roman provincials and barbarae or gentiles, Soraci, after assessing the context and intent of the law, proceeded to discuss its influence upon the practices of the Germanic kingdoms which succeeded the Roman Empire in the West. The text of the law reads: