Mǎ Yù 馬鈺 (1123–1184), zì Xuán bǎo 玄寶, hào Dān yáng zǐ 丹陽子 (hence Mǎ Dān yáng 馬丹陽), was the first of the Seven Perfected and Wáng Chóngyáng’s senior disciple. A wealthy Shān dōng landowner who gave up his estate to follow Wáng. Senior patriarch of the Yù xiān 遇仙 branch of Quán zhēn. Dào zàng works: KR5d0080 Dān yáng zhēn rén yǔ lù, KR5e0044 Jiàn wù jí, KR5e0051 Dòng xuán jīn yù jí, KR5e0052 Dān yáng shén guāng càn.