Lifespan: Tenbun 1 (1532) to 1/11 of Eiroku 2 (1559)
Clan: Shōni → Kyūshū Chiba (East-Chiba)
Father: Shōni Sukemoto
Adoptive Father: Chiba Yoshitane
Siblings: Shōni Fuyuhisa, Taneyori, Shōni Masaoki, Shōni Motomori, Matsuura Shige
Wife: Daughter of Chiba Yoshitane
Chiba Taneyori served as a bushō during the Sengoku period. He was the second son of Shōni Sukemoto.
During the Muromachi period, the Kyūshū-Chiba clan were the most powerful gōzoku, or wealthy family, in Hizen Province. The Ryūzōji clan was under their governance, but, toward the end of the Muromachi period, the family divided into west and east branches known Nishi-Chiba clan (the Haruke-Chiba clan) and the Higashi-Chiba clan (the Gion-Chiba clan). After being driven out of Chikuzen by the Ōuchi clan, the Shōni clan then established their base in Hizen. As a divided family, the Kyūshū-Chiba were unable to mount a unified response to the Shōni so became subordinate to them. In the end, the Chiba became equivalent to retainers of the Shōni.
In 1542, soon after Chiba Yoshitane inherited the headship of the Higashi-Chiba clan, he killed himself, whereupon Taneyori became his successor.
Taneyori supported his older brother, Shōni Fuyuhisa (a daimyō based at Seifukuji Castle in Hizen) after Fuyuhisa came into conflict with a senior retainer named Ryūzōji Takanobu. Meanwhile, Chiba Tanetsura of the Nishi-Chiba clan (with whom Taneyori was in conflict since the split of the family) adopted Nabeshima Hikohōshimaru (later known as Naoshige) who was the son of a senior retainer of the Ryūzōji family and continued to oppose Taneyori.
In 1559, Ryūzōji Takanobu and Chiba Tanetsura attacked Taneyori, causing Taneyori and Fuyuhisa to take their own lives at Seifukuji Castle. in the wake of this incident, Taneyori’s son, Chiba Tanetomo, fled for the protection of Kumashiro Katsutoshi, a retainer of the Shōni clan.