Zhāng Sānfēng 張三丰 — semi-legendary Daoist immortal of the late-Yuán to early-Míng transition (c. 1340–1410, exact dates contested), traditionally identified with the figures Zhāng Quányī 張全一 and Zhāng Jūnbǎo 張君寶. Conventionally credited as the founder of the Wǔdāng Daoist tradition centred at Wǔdāngshān 武當山 (Húběi), and (post-Míng) as the originator of the Tàijí quán 太極拳 martial-and-meditative tradition. Repeatedly summoned by Yǒnglè (1402–1424) and not found, leading to the Ming-Qing legendary corpus of his immortality and extensive travels. Posthumously titled Tōngwēi xiǎnhuà zhēnrén 通微顯化真人 by Tiānshùn 1459, and Tàiyuán shènzhì rényīng zhēn jūn by Yǒnglè. His attributed corpus — almost wholly pseudepigraphic and assembled in the late Míng / Qīng — fills 8 juàn in the Zhāng Sānfēng quán jí 張三丰全集 (cf. KR5i0071) and is cited in the planchette-revealed Jīn huá zōng zhǐ (KR5i0046) under his cult-title. CBDB ID 130313. Standard reference: Pierre-Henry de Bruyn, “Daoism in the Ming,” in Lagerwey & Marsone (eds.), Modern Chinese Religion I (Brill 2014).