Tokuko Enters Takakura’s Court and Gives Birth to the Future Antoku

Taira no Tokuko, a daughter of Kiyomori, entered Emperor Takakura’s court in 1171. Before her entry, retired emperor Go-Shirakawa made her his adopted daughter, giving the marriage an additional connection to the imperial family. She entered as a nyōgo, an imperial consort, and became chūgū the following year. These formal steps placed Kiyomori’s daughter within the hierarchy of the reigning emperor’s household.

In 1178 Tokuko gave birth to Prince Tokihito. He was made crown prince soon afterward, establishing Kiyomori as the maternal grandfather of the expected next sovereign. The arrangement connected succession to the Taira family through the child’s mother, while Takakura remained emperor and Go-Shirakawa continued to exercise retired authority.

The child acceded as Emperor Antoku in 1180. That later succession gave the household connection its greatest political effect, but the events of 1171–1178 were the consort’s entry, promotion and childbirth. Tokuko’s Kenreimon-in title followed in 1181. Her flight with Antoku in 1183 and survival at Dan-no-ura in 1185 belonged to the subsequent war, rather than to a life course already settled at the time of her marriage.