If we examine the list still more minutely, we find no less than twenty-two families, each of whose estates was equal to, or larger than, one-half of the Muromachi manors. Some families consisted of several branches whose aggregate properties represented an immense area. This was notably the case of the Yamana; their five branches held lands totalling 45,788 cho. The owners of such estates must not be confounded with the high constables (shugo). Thus Yamana Sozen, as the high constable of Harima province, held administrative authority in fourteen districts covering an area of 10,414 cho, and if to this be added the expanse of his fief, namely, 8016 cho, we get a total nearly equal to the manors of Hosokawa Katsumoto. Again, Shiba Yoshitoshi, in addition to owning 10,816 cho, officiated as tandai of Kyushu, which gave him jurisdiction over another extent of 106,553 cho, though it is true that his authority was defied in the provinces of Satsuma and Osumi. The military owner of one of these great estates levied a revenue on a scale which will be presently discussed, but the high constable was nominally empowered to collect and transmit only such taxes as were payable to the Bakufu, namely, the "military dues" (buke-yaku) and the "farmers' dues" (hyakusho-yaku), whereof the former were originally assessed at two per cent., and subsequently raised to five per cent., of a family income; and the latter varied from one to two per cent, of a homestead's earnings. So long as a high constable or a tandai was loyal to the Bakufu, the latter received the appointed quota of imposts; but in times of insurrection, the shugo or tandai appropriated to his own purposes the proceeds alike of the buke-yaku and the hyakusho-yaku.
Not merely inequalities of wealth operated to produce political unrest. It has also to be noted that each great military family supported a body of armed retainers whose services were at all times available; further, we must remember that the long War of the Dynasties had educated a wide-spread spirit of fighting, which the debility of the Ashikaga Bakufu encouraged to action. The Onin disturbance had its origin in disputes about inheritance. It has been recorded that the high post of kwanryo (governor-general) in the Muromachi polity was filled by a member of one of three families, the Hosokawa, the Hatakeyama, and the Shiba. The Hosokawa were the most powerful, and had for representative in the middle of the fifteenth century an administrator, Katsumoto, who to extensive erudition and a profound knowledge of medicine added very exceptional gifts of statecraft and organizing ability. The Hatakeyama had for head Mochikuni, called also Tokuhon, a man of parts; and it happened that the rival family of Yamana was led by Mochitoyo, or Sozen, who, on account of his powerful physique, shaved head, and peculiar complexion, sometimes received the name of the "Red Monk" (Aka-nyudo).
Tokuhon being without a legitimate son, adopted his nephew, Masanaga, but subsequently desired to secure the succession to Yoshinari, a son borne to him by a concubine. This change was not viewed with equanimity by all the vassals of Tokuhon, and to solve the problem the latter appealed to the shogun, Yoshimasa, who authorized the death of Masanaga. Tokuhon, in his capacity of kwanryo, naturally had much weight with the shogun, but Yoshimasa's conduct on that occasion must be attributed mainly to a laisser-aller mood which he had then developed, and which impelled him to follow the example set by the Imperial Court in earlier times by leaving the military families in the provinces to fight their own battles. Masanaga sought succour from Hosokawa Katsumoto, and that magnate, welcoming the opportunity of avenging an old injury at the hands of the Hatakeyama, laid siege to the mansion of Tokuhon, who barely escaped with his life, his son, Yoshinari, fleeing to the fortress of Wakae, in Kawachi, whence he was presently driven by the forces of Katsumoto and Sozen, then acting in conjunction but destined afterwards to become bitter enemies.
The shogun, true to his complacent policy, now recognized Masanaga as head of the house of Hatakeyama, Tokuhon having just died (1455). But Yoshinari did not acquiesce. In 1456, he marched with a Kawachi army against Masanaga, and a deadly struggle was barely prevented by the intervention of the shogun. Thenceforth, the Hatakeyama became divided into two families, Masanaga's branch being the more powerful, but Yoshinari obtaining favour at Muromachi and being nominated kwanryo. Owing, however, to some petty causes, the shogun's good-will was subsequently estranged, and Yoshinari had to flee from Kyoto, pursued by Masanaga, who now held a commission from Muromachi to kill him. A seven-years' fight (1460-1467) ensued in Kawachi and Yamato. Yoshinari displayed greatly superior skill as a strategist, and finally Yamana Sozen, who had always entertained a good opinion of him even while opposing his succession at the outset, openly espoused Yoshinari's cause. The immediate result was that Masanaga, who had been named kwanryo in 1464, had to give way to SOzen's nominee, Shiba Yoshikado, and found himself in deadly peril.
It is necessary here to recall the murder of the shogun Yoshinori, in 1441. That crime had resulted in the fall of the Akamatsu family, the direct agent of its overthrow being the united forces of Hosokawa, Takeda, and Yamana. There were no bonds of genuine friendship between the Hosokawa chief, Katsumoto, and Yamana Sozen. Their union was primarily due to Katsumoto's ambition. He desired to break the power of Hatakeyama Tokuhon, and with that ultimate object he courted the alliance of Sozen, giving his own daughter to the latter in marriage and himself adopting Sozen's son, Koretoyo. Thus, the two chiefs were subsequently found acting together against Tokuhon's attempt to substitute his son, albeit illegitimate, for his nephew, as heir to the Hatakeyama estates. Neither Katsumoto nor Sozen cared anything about the succession itself. Their object was simply to crush the Hatakeyama; and Sozen, who never relied on argument where force was applicable, lost no time in attacking Tokuhon and driving him from his burning mansion, as has been already stated. From the legal consequences of that violence, Sozen was saved by Katsumoto's intercession at Muromachi, and the alliance (1454) between the Hosokawa and the Yamana seemed stronger than ever. But Sozen did not greatly trust his crafty ally, with whose gifts of political strategy he was well acquainted. He suspected Katsumoto of a design to restore the fortunes of the once powerful Akamatsu family, and he began to muster forces for the great struggle which he anticipated. Therefore it was that, in 1467, as shown above, he not only espoused the cause of Hatakeyama Yoshinari, in whom he recognized an able captain, but also championed Shiba Yoshikado.
With regard to this latter, it is necessary to recognize that he also figured in a succession dispute. The great family of Shiba being without a direct heir, a relative was appointed to the headship in 1452. This successor, Yoshitoshi, attempting to enforce the acquiescence of one of his vassals, was defeated and became a fugitive, a successor, Yoshikado, being nominated by the Shiba vassals. But a sister of the fugitive subsequently married the shogun's favourite, Ise Sadachika, and through her influence the shogun was induced (1466) to recall Yoshitoshi and to declare him rightful head of the Shiba family. Yamana Sozen, who had given his daughter in marriage to Yoshitoshi's rival, Yoshikado, immediately set a powerful army in motion for Kyoto, and the alarmed shogun (Yoshimasa) not only recognized Yoshikado and drove out Yoshitoshi, but also nominated the former to be kwanryo.
From this grievously complicated story the facts which emerge essentially and conspicuously are: first, that Yamana Sozen now occupied the position of champion to representatives of the two great families of Hatakeyama and Shiba; secondly, that the rival successors of these families looked to Hosokawa Katsumoto for aid; thirdly, that the relations between Sozen and Katsumoto had become very strained, and fourthly, that the issue at stake in every case was never more lofty than personal ambition.. The succession to the shogunate also was in dispute. Yoshimasa, being childless, desired to adopt as his heir his younger brother who had entered religion under the name of Gijin. The latter declined the honour until Yoshimasa swore that were a son subsequently born to him, it should be made a priest but never a shogun. Gijin then took the name of Yoshimi, and was for a time recognized as heir-apparent, Hosokawa Katsumoto being appointed manager (shitsuji). Presently, however, the shogun's consort, Tomi, gave birth to a boy, Yoshihisa, and the mother persuaded Yoshimasa to contrive that her son should supplant the sometime priest. Of necessity, the aid of Sozen was sought to accomplish this scheme, Katsumoto being already officially attached to Yoshimi. The Yamana chief readily assented, and thus the situation received its final element, a claimant whose right rested on a deliberately violated oath.
THE ONIN WAR
By the close of 1466, the two great protagonists, Katsumoto and Sozen, had quietly collected in Kyoto armies estimated at 160,000 and 110,000 men, respectively. The shogun attempted to limit the area of disturbance by ordering that the various rival inheritors should be left to fight their own battles, and by announcing that whoever struck the first blow in their behalf would be proclaimed a rebel. Such injunctions were powerless, however, to restrain men like Sozen. In February, 1467, his followers attacked the former kwanryo, Hatakeyama Masanaga, and drove him from the capital. Katsumoto made no move, however; he remained on the watch, confident that thus the legitimacy of his cause would obtain recognition. In fact, the shogun was actually under guard of the Hosokawa troops, who, being encamped on the east and north of Muromachi, received the name of the Eastern Army; the Yamana forces, which were massed on the west and south, being distinguished as the Western Army.
It was evident that if either side retreated, the other would perforce be acknowledged by the Bakufu, and both were reluctant to put their fortunes to the final test. At length, early in July, 1467, a petty skirmish precipitated a general engagement. It was inconclusive, and the attitude of mutual observation was resumed. Two months later re-enforcements reached the Western Army, and thereafter, for nearly two years, victory rested with the Yamana. But Katsumoto clung desperately to his position. Kyoto was reduced almost completely to ruins, the Imperial palace, Buddhist temples, and other mansions being laid in ashes, countless rare works of art being destroyed, and the Court nobles and other civil officials being compelled to flee to the provinces for shelter. A celebrated poet of the time said that the evening lark soared over moors where formerly there had been palaces, and in the Onin Records it is stated that the metropolis became a den for foxes and wolves, and that Imperial mandates and religious doctrines were alike unheeded.