Late-Táng Esoteric monk-philologist. Native of Běipíng 北平 (modern Beijing). Lay surname and lifedates not preserved.
He self-identifies in the byline of his one extant work as bā-lì-zǐ 八力子 (“disciple of the Eight Powers” — a designation within the Esoteric initiation hierarchy) and as a transmitter of the Wǔ-bù yú-jiā chí-niàn jiào 五部瑜伽持念教 (“Five-Section Yoga dhāraṇī-recitation Teaching”) — locating him in the post-Bù-kōng 不空 (705–774) lineage of the zhēn-yán / yú-jiā tradition that established Esoteric Buddhism at the Tang court and that continued through Huì-lín 慧琳 (737–820) and successive Esoteric scholar-monks into the late Tang and Five Dynasties.
His one work is the single-juan Táng Fàn wénzì 唐梵文字 (KR6s0023, T2134) — a Sanskrit-Chinese paired vocabulary handbook for Esoteric practitioners, structured to enable “translation, hold-and-recite, and practice of the Yoga conduct” within one or two years’ study. Dating is uncertain within the late-Táng to early Five-Dynasties bracket (ca. 700–900).
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A different Quánzhēn 全真 (DILA A014170, Zōnghuì 宗惠, Jìzhào dàshī 寂照大師) is a Sòng monk; not the same person.
Source: DILA Buddhist Person Authority A000327; auto-preface to Táng Fàn wénzì (T54n2134).