But it was no part of Hideyoshi's policy to await the arrival of these barons. He had already at his command an army of some thirty thousand men, and with this he moved out, challenging Mitsuhide to fight on the plains of Yamazaki. Mitsuhide did not hesitate to put his fortunes to the supreme test. He accepted Hideyoshi's challenge, and, on the 12th of June, a great battle was fought, the issue of which was decided by two things; first, the defection of Tsutsui Junkei, who refrained from striking until the superior strength of Hideyoshi had been manifested, and secondly, the able strategy of Hideyoshi, who anticipated Mitsuhide's attempt to occupy the position of Tenno-zan, which commanded the field. From the carnage that ensued Mitsuhide himself escaped, but while passing through a wood he received from a bamboo spear in the hands of a peasant a thrust which disabled him, and he presently committed suicide. Thus, on the thirteenth day after Nobunaga's death, the head of his assassin was exposed in Kyoto in front of the temple of Honno-ji where the murder had taken place, and Mitsuhide's name went down in history as the "Three days' shogun" (Mikkakubo).
CONFERENCE AT KIYOSU
By this time the principal of Nobunaga's vassal-barons were on their way at the head of contingents to attack Mitsuhide. On learning of the assassin's death, these barons all directed their march to Kiyosu, and in the castle from which Nobunaga had moved to his early conquests thirty years previously, a momentous council was held for the purpose of determining his successor. The choice would have fallen naturally on Samboshi, eldest son of Nobunaga's first-born, Nobutada, who, as already described, met his death in the Mitsuhide affair. But Hideyoshi was well understood to favour Samboshi's succession, and this sufficed to array in opposition several of the barons habitually hostile to Hideyoshi. Thus, in spite of the fact that both were illegitimate and had already been adopted into other families, Nobunaga's two sons, Nobukatsu and Nobutaka, were put forward as proper candidates, the former supported by Ikeda Nobuteru and Gamo Katahide; the latter, by Shibata Katsuiye and Takigawa Kazumasu.
At one moment it seemed as though this question would be solved by an appeal to violence, but ultimately, at the suggestion of Tsutsui Junkei, it was agreed that Samboshi should be nominated Nobunaga's successor; that Nobukatsu and Nobutaka should be appointed his guardians, and that the administrative duties should be entrusted to a council consisting of Shibata Katsuiye, Niwa Nagahide, Ikeda Nobuteru, and Hideyoshi, each taking it in turn to discharge these functions and each residing for that purpose in Kyoto three months during the year. An income of one hundred thousand koku in the province of Omi was assigned to Samboshi pending the attainment of his majority, when he should be placed in possession of much larger estates, which were to be entrusted in the meanwhile to the keeping of one of the four barons mentioned above. Nobukatsu received the province of Owari, and Nobutaka that of Mino, the remainder of Nobunaga's dominions being apportioned to his generals, with the exception of Hideyoshi, to whom were assigned the provinces recently overrun by him in the midlands—Tajima, Harima, Inaba, and Tamba.
Such an arrangement had no elements of stability. The four councillors could not possibly be expected to work in harmony, and it was certain that Katsuiye, Sakuma Morimasa, and Takigawa Kazumasu would lose no opportunity of quarrelling with Hideyoshi. Indeed, that result was averted solely by Hideyoshi's tact and long suffering, for when, a few days later, the barons again met at Kiyosu for the purpose of discussing territorial questions, every possible effort was made to find a pretext for killing him. But Hideyoshi's astuteness and patience led him successfully through this maze of intrigues and complications. He even went so far as to hand over his castle of Nagahama to Katsuiye, and to endure insults which in ordinary circumstances must have been resented with the sword. Tradition describes a grand memorial ceremony organized in Kyoto by Hideyoshi in honour of Nobunaga, and, on that occasion, incidents are said to have occurred which bear the impress of romance. It is, at all events, certain that the immediate issue of this dangerous time was a large increase of Hideyoshi's authority, and his nomination by the Court to the second grade of the fourth rank as well as to the position of major-general. Moreover, the three barons who had been appointed with Hideyoshi to administer affairs in Kyoto in turn, saw that Hideyoshi's power was too great to permit the peaceful working of such a programme. They therefore abandoned their functions, and Hideyoshi remained in sole charge of the Imperial Court and of the administration in the capital.
DEATH OF SHIBATA KATSUIYE
It has been already stated that Nobunaga's sons, Nobutaka and Nobukatsu, were bitter enemies and that Nobutaka had the support of Takigawa Kazumasu as well as of Shibata Katsuiye. Thus, Hideyoshi was virtually compelled to espouse the cause of Nobukatsu. In January, 1583, he took the field at the head of seventy-five thousand men, and marched into Ise to attack Kazumasu, whom he besieged in his castle at Kuwana. The castle fell, but Kazumasu managed to effect his escape, and in the mean while Katsuiye entered Omi in command of a great body of troops, said to number sixty-five thousand. At the last moment, however, he had failed to secure the co-operation of Maeda Toshiiye, an important ally, and his campaign therefore assumed a defensive character. Hideyoshi himself, on reconnoitring the position, concluded that he had neither numerical preponderance nor strategical superiority sufficient to warrant immediate assumption of the offensive along the whole front. He therefore distributed his army on a line of thirteen redoubts, keeping a reserve of fifteen thousand men under his own direct command, his object being to hold the enemy's forces in check while he attacked Gifu, which place he assaulted with such vigour that the garrison made urgent appeals to Katsuiye for succour.
In this situation it was imperative that some attempt should be made to break the line of redoubts, but it was equally imperative that this attempt should not furnish to the enemy a point of concentration. Accordingly, having ascertained that the weakest point in the line was at Shizugatake, where only fifteen hundred men were posted, Katsuiye instructed his principal general, Sakuma Morimasa, to lead the reserve force of fifteen thousand men against that position, but instructed him at the same time to be content with any success, however partial, and not to be betrayed into pushing an advantage, since by so doing he would certainly furnish a fatal opportunity to the enemy. Morimasa neglected this caution. Having successfully surprised the detachment at Shizugatake, and having inflicted heavy carnage on the defenders of the redoubt, who lost virtually all their officers, he not only sat down to besiege the redoubt, whose decimated garrison held out bravely, but he also allowed his movements to be hampered by a small body of only two score men under Niwa Nagahide, who took up a position in the immediate neighbourhood, and displaying their leader's flag, deceived Morimasa into imagining that they had a powerful backing. These things happened during the night of April 19, 1583. Katsuiye, on receipt of the intelligence, sent repeated orders to Morimasa requiring him to withdraw forthwith; but Morimasa, elated by his partial victory, neglected these orders.
On the following day, the facts were communicated to Hideyoshi, at Ogaki, distant about thirty miles from Shizugatake, who immediately appreciated the opportunity thus furnished. He set out at the head of his reserves, and in less than twenty-four hours his men crossed swords with Morimasa's force. The result was the practical extermination of the latter, including three thousand men under Katsuiye's adopted son, Gonroku. The latter had been sent to insist strenuously on Morimasa's retreat, but learning that Morimasa had determined to die fighting, Gonroku announced a similar intention on his own part. This incident was characteristic of samurai canons. Hideyoshi's victory cost the enemy five thousand men, and demoralized Katsuiye's army so completely that he subsequently found himself able to muster a total force of three thousand only. Nothing remained but flight, and in order to withdraw from the field, Katsuiye was obliged to allow his chief retainer, Menju Shosuke, to impersonate him, a feat which, of course, cost Shosuke's life.
Katsuiye's end is one of the most dramatic incidents in Japanese history. He decided to retire to his castle of Kitano-sho, and, on the way thither, he visited his old friend, Maeda Toshiiye, at the latter's castle of Fuchu, in Echizen. Thanking Toshiiye for all the assistance he had rendered, and urging him to cultivate friendship with Hideyoshi, he obtained a remount from Toshiiye's stable, and, followed by about a hundred samurai, pushed on to Kitano-sho. Arrived there, he sent away all who might be suspected of sympathizing with Hideyoshi, and would also have sent away his wife and her three daughters. This lady was a sister of Nobunaga. She had been given, as already stated, to Asai Nagamasa, and to him she bore three children. But after Nagamasa's destruction she was married to Katsuiye, and was living at the latter's castle of Kitano-sho when the above incidents occurred. She declined to entertain the idea of leaving the castle, declaring that, as a samurai's daughter, she should have shared her first husband's fate, and that nothing would induce her to repeat that error. Her three daughters were accordingly sent away, and she herself joined in the night-long feast which Katsuiye and his principal retainers held while Hideyoshi's forces were marching to the attack. When the sun rose, the whole party, including the ladies, committed suicide, having first set fire to the castle.