Sūn Bùèr 孫不二 (1119–1182) — original name Sūn Yuānzhēn 孫淵貞, hào Qīng jìng sǎn rén 清淨散人 (“Pure-Stillness Scattered Person”). Wife of Mǎ Yù 馬鈺 (Mǎ Dānyáng), the first patriarch of 王重陽 Wáng Chóngyáng’s Seven Perfected; Sūn herself is the only female member of the Seven Perfected (七真) and the foundress of the Qīngjìng pài 清靜派 lineage of the Quánzhēn school, with her own institutional foothold and a distinctive line of female-disciplined inner alchemy. Trained directly under Wáng Chóngyáng after his arrival at her household in 1167; entered the Daoist order at age 51, leaving her seven children with her husband Mǎ Yù; founded the Luòyáng Fēngxián gū (Phoenix-Immortal Belvedere). Reputedly attained the Way at Luòyáng on 12/29/1182. Pseudepigraphic Sūn Bùèr fǎ yǔ (KR5i0063) and the Dān dào mì shū (KR5i0064) are the chief canonical texts of late-imperial female-inner-alchemy (女丹), including her kūn dào gōng fū cì dì 坤道功夫次第 (Sequence of the Kūn-Way’s Cultivation) — a standard 14-step manual for women practitioners. Standard reference: Despeux, Immortelles de la Chine ancienne (Pardès 1990); Cleary, trans., Immortal Sisters: Secrets of Taoist Women (Shambhala 1989).