Guān dì 關帝 — historical name Guān Yǔ 關羽 (160–220 CE), zì Yúncháng 雲長, the ShǔHàn general of Liú Bèi 劉備 famous from the San guó zhì 三國志 and the San guó yǎn yì 三國演義. From the late Sòng a popular cult-deity, progressively elevated through the Yuán, Míng, and Qīng to the rank of Guān shèng dìjūn 關聖帝君 (“Holy Imperial Lord Guān”), and a tutelary divinity of warriors, merchants, oath-fellowships, and (most relevantly here) of late-imperial Daoist fújī 扶乩 cults. From the MíngQīng his cult is one of the principal “demon-subduing” (伏魔) divinities, with the Wàn-lì-era title 三界伏魔大帝神威遠震天尊關聖帝君, granted in 1614, fixing his Daoist-canonical name. He is the attributed planchette-revealer of an entire late-imperial corpus of moral-scripture, including KR5i0022 Yùqīng zànhuà jiǔtiān yǎnzhèng xīnyìn bǎochàn (preface), KR5i0088 Guān dì zhōngxiào zhōngyì jīng, and KR5i0089 Guān shèng dìjūn běn zhuàn. Standard reference: ter Haar, Guan Yu: The Religious Afterlife of a Failed Hero (Oxford UP 2017).