Taira no Yoritsuna

Taira no Yoritsuna (died 1293) rose through service to the Hōjō ruling household. He served Tokimune and was the husband of the woman who nursed Tokimune’s heir, Sadatoki. After Sadatoki became regent in 1284, Yoritsuna exercised power as the household’s senior administrator. This was a different position from regent: it placed a trusted servant close to the family that dominated the shogunate, with access to its personnel and decisions. [S01]

His rivalry with Adachi Yasumori ended in Yasumori’s destruction in the Shimotsuki Incident of 1285. Yoritsuna’s network then gained greater influence over government business. In 1291, complaints about delayed handling of temple and shrine disputes were assigned to five servants of the Hōjō household, including his son. Such arrangements brought household officers into work previously handled through the shogunate’s formal administration, extending their reach beyond their lord’s private affairs. [S01, S02]

In 1293 Sadatoki attacked Yoritsuna’s residence and killed him and his son. The later Hōryakukanki gives an allegation that the son intended to become shogun; modern historian Inaba Nobumichi considers that charge a possible pretext. The attack removed the powerful administrator and allowed Sadatoki to exercise authority more directly. Service at the center of a ruling household had given Yoritsuna exceptional power, but also made his survival depend on the lord whose government he helped control. [S01, S02]