Zhōnglí Quán 鍾離權, styled Zhèng yáng zhēn rén 正陽真人, is a legendary Daoist immortal — traditionally the teacher of 呂洞賓 Lǚ Dòngbīn and the senior of the Bā xiān 八仙 (Eight Immortals). Hagiographies place him variously in the Hàn or Táng. A major figure in the ZhōngLǚ 鍾呂 inner-alchemical tradition, precursor to Sòng-era Quán zhēn. Attributed author of KR5f0025 Mì chuán Zhèng yáng zhēn rén Líng bǎo bì fǎ 祕傳正陽真人靈寶畢法 and numerous alchemical writings.