Note 30 — Chapter II · The Kingdom of Scotland—843–900.

Some such a character still exists in Japan, which is under the divided rule of two emperors; one a sacred puppet, nominally the head of the empire, but practically kept aloof from all mundane matters; the other known as the Ziogoon, or general, and the real ruler of the empire. This example of a double head to an empire certainly bears some resemblance to the divided authority of the old Celtic system, or rather to what that divided authority might have become under certain circumstances.