The Mikados of Japan seem early to have resorted to the expedient of transferring the honours and burdens of supreme power to their infant children; and the rise of the Tycoons, long the temporal sovereigns of the country, is traced to the abdication of a certain Mikado in favour of his three-year-old son. The sovereignty having been wrested by a usurper from the infant prince, the cause of the Mikado was championed by Yoritomo, a man of spirit and conduct, who overthrew the usurper and restored to the Mikado the shadow, while he retained for himself the substance, of power. He bequeathed to his descendants the dignity he had won, and thus became the founder of the line of Tycoons. Down to the latter half of the sixteenth century the Tycoons were active and efficient rulers; but the same fate overtook them which had befallen the Mikados. Immeshed in the same inextricable web of custom and law, they degenerated into mere puppets, hardly stirring from their palaces and occupied in a perpetual round of empty ceremonies, while the real business of government was managed by the council of state. In Tonquin the monarchy ran a similar course. Living like his predecessors in effeminacy and sloth, the king was driven from the throne by an ambitious adventurer named Mack, who from a fisherman had risen to be Grand Mandarin. But the king's brother Tring put down the usurper and restored the king, retaining, however, for himself and his descendants the dignity of general of all the forces. Thenceforward the kings, though invested with the title and pomp of sovereignty, ceased to govern. While they lived secluded in their palaces, all real political power was wielded by the hereditary generals.