Qìsōng 契嵩 (1007 – 28 June 1072), Northern-Sòng Yún-mén-school Chán master and the most influential Buddhist apologist-polemicist of the eleventh century; zì Zhònglíng 仲靈, hào Qiánzǐ 潛子, Míngjiào 明教 (“Bright Teaching”), Fórì 佛日 (“Sun of the Buddha”), and Míngjiào lǎorén 明教老人 in old age.
His major scholarly contribution was the defence of Buddhism against the rising Northern-Sòng gǔwén 古文 Confucian revival of Hán Yù, Liǔ Kāi, Ōuyáng Xiū, and Sīmǎ Guāng. The principal documents of this defence are the 《輔教編》 Fǔjiào biān (T2115) — a synthetic treatise integrating Buddhism into the Confucian moral-philosophical framework — and his coordinated lineage-historical works 《傳法正宗記》 Chuánfǎ zhèngzōng jì (KR6r0100, T2078, 9 juan), 《傳法正宗定祖圖》 Chuánfǎ zhèngzōng dìngzǔ tú (KR6r0101, T2079), and 《傳法正宗論》 Chuánfǎ zhèngzōng lùn (T2080), which establish the orthodoxy of the Chán Bodhidharma-lineage by historiographical argumentation. The works were submitted to Sòng Rénzōng 仁宗 in Zhìpíng 治平 1 (1064) and received imperial approval, with the title Míngjiào dàshī 明教大師 conferred on Qìsōng. He died in Xīníng 熙寧 5 / 6 / 4 (= 28 June 1072) at age 66.
His collected literary works (Tánjīn wénjí 鐔津文集, T2115) are one of the principal Northern-Sòng documents of the Buddhist-Confucian literary-philosophical encounter. Per DILA Buddhist Person Authority A000821.
Works in the Kanripo corpus: KR6r0100 Chuánfǎ zhèngzōng jì; KR6r0101 Chuánfǎ zhèngzōng dìngzǔ tú; KR6r0102 Chuánfǎ zhèngzōng lùn; KR6r0148 Tánjīn wénjí.