Zi Yan ??. As Qi's mother was of low birth, whereas Di Xin's was the principal consort, he was made the heir and ascended the throne after Di Yi passed away. Di Xin had two uncles, Ji Zi and Bi Gan. He bore a single son named Wu Geng.

Outside of family, little is known of Di Xin's early life outside of posthumous accounts. In Chapter 15 of Xunzi, Di Xin