was the 11th daimyō of the Obama Domain. He was the younger son of Sakai Tadatsura, but because of his youth at the time of his father's death, his uncle Sakai Takayuki from the Tsuruga Domain was made daimyō instead. The succession reverted to Tadayori on Takayuki's death in 1828.
He held the position of 11th daimyō of the Obama Domain, being the younger son of Sakai Tadatsura. However, due to his tender age at the time of his father's passing, his uncle Sakai Takayuki from the Tsuruga Domain was appointed as the new daimyō instead. The succession reverted back to Tadayori upon Takayuki's death in 1828.