Toki Tameyori served as a bushō during the Sengoku and Azuchi-Momoyama periods.  He was a kokujin, or provincial landowner, in Kazusa Province.  Tameyori served as the lord of Mangi Castle in the Inan manor of the Isumi District of Kazusa.

Tameyori was born as the son of Toki Yorisada.  He called himself Danjō-shōhitsu (Deputy Inspector) and, initially, obeyed the Awa-Satomi clan.  He acquired significant influence, sending his daughter to become a dowager of Satomi Yoshitaka (a sengoku daimyō and the fifth head of the Satomi clan) and accommodating (from Toki Haruyori of Edosaki Castle in Hitachi Province) Toki Yoriaki, the military governor of Mino Province from the main branch of the Toki clan who was ousted from his territory by Saitō Dōsan.  After the defeat of the Awa-Satomi clan at the Second Battle of Kōnodai, Tameyori defected to the Hōjō clan and, thereafter, remained loyal to the Hōjō and fought against the Satomi.  According to a death register kept at the Kōyasan-Saimon Temple, in 1579, Tameyori transferred the headship of the clan to his son, Toki Yoriharu.  In his later years, Tameyori adopted the monk’s name of 慶含.

His date of death is subject to various theories, including 4/23 of Eiroku 11 (1568), 3/18 of Tenshō 11 (1583), and 4/27 of Tenshō 11 (1583).  Based on a donation certificate dated 5/23 of Tenshō 11 (1583) for the donation by the Nakatsugi clan (retainers of the Toki) of personal lands to the Kōfuku Temple (the family temple of the Toki clan) for the afterlife of 慶含院殿, it appears that Tameyori died shortly prior to this time on 4/27.

His daughter, who became the formal wife of Satomi Yoshitaka, remained with Yoshitaka even after Tameyori’s defection.  On 8/1 of Eiroku 11 (1568), Tameyori died at the age of fifty-five.  Nichiga, a priest from the Hota-Myōhon Temple in Awa who had friendly relations with Yoshitaka and his wife called her the empress dowager and conducted memorial services on the anniversary of her death.