紀齊卿 Jì Qíqīng Jì Qíqīng 紀齊卿, Táng-era commentator on the Nànjīng 難經; cited in 楊繼洲 Yáng Jìzhōu’s Zhēndào yuánliú essay in the Zhēnjiǔ dàchéng (KR3ee027). Commentary lost.