When the influence of Kiyomori reached its zenith, he conceived the design of securing permanent official supremacy for himself and his heirs by contriving that the consort of the sovereign should be taken from his family, as had been the habit in the case of the Fujiwara. In pursuance of that project, he induced the emperor to marry his daughter. Shigemori, his son, held the important offices of lord keeper of the privy seal and generalissimo of the left, while almost the whole of his kinsmen and followers occupied prominent positions in the central and local government. The number of provinces over which the sway of the clan extended was more than thirty, and it came to be a saying of the time that a person not belonging to the Taira family was no one. The members of the Fujiwara clan could not compete with those of the Taira. Even the regent, Motofusa, and the chief minister of state, Motomichi, saw themselves reduced to comparative insignificance. Naturally such conspicuous ascendency caused offense in many quarters, and the Court Councilor Fujiwara-no-Narichika, a favorite official of the ex-Emperor Goshirakawa, in combination with several others, elaborated a plot to overthrow the Taira sway. But the scheme was detected, and its authors and promoters were all put to death by order of Kiyomori. Having been informed that the ex-emperor had countenanced the plot, Kiyomori conceived for him a strong hatred, which was greatly accentuated when, on the death of the Taira chief's son Shigemori, the ex-emperor, after consultation with Motofusa, caused the estates of the deceased nobleman to be confiscated. Too haughty to brook such a slight Kiyomori set out from his mansion at Fukuhara, and entering Kyōto, caused the ex-emperor to be seized and confined in the Toba palace, and thirty-nine of his majesty's high officials to be dismissed at the same time. Toward the reigning sovereign the demeanor of the Taira was so arrogant and his methods so arbitrary, that the emperor finally abdicated in favor of the crown prince, who reigned under the name of Antoku. This sovereign was the son of the retiring emperor and his mother was Kiyomori's daughter, so that the Taira then stood toward the imperial house in the same relation as that formerly occupied by the Fujiwara, with the tremendous difference, however, that the former also possessed the whole military power of the time, which gave them unprecedented influence and supremacy. Nevertheless, even among the members of a family so puissant, there were to be found some feeble nobles who had no skill in military exercises nor could boast any accomplishment except the art of composing stanzas, playing on musical instruments, or practicing some effeminate pastime.