how a Roman emperor crowned?

[john m roberts]

The purple cloak was probably derived from the toga picta, the gold-embroidered purple cloak worn by the triumphator for a single day during his triumphal procession along the via sacra. One of the demands Julius Caesar made toward the end of his dictatorship was the right to wear the toga picta at all times. this was considered outrageous but it seems to have been assumed by the emperors in the form of "the purple." The royal crown as we know it was a custom of the Germanic peoples who replaced the Roman domination in Italy.