Northern-Sòng Yìxué student of Yíngyáng 滎陽. With 王天悅 Wáng Tiānyuè of Dàmíng, one of two student-confidants of 邵雍 Shào Yōng in the xiāntiān 先天 Yì-numerology transmission. Both died young, according to 邵伯溫 Shào Bówēn’s Yìxué biànhuò (KR1a0017).