The monk and scholar Chengguan (738–839) lived during the Tang Dynasty and is best known as the author of the *Commentary on the Flower Garland Sutra* (Fahua jing shu), a seminal work in Chinese Huayan Buddhism.
The Extensive Flower Adornment Sutra: Chapter on the Practices and Vows of Samantabhadra, with Separate Commentary and Sub-commentary (Selections from "Accounts of the Seven Patriarchs of the Huayan School" and "Appendix") (大方廣佛華嚴經普賢行願品別行疏鈔（選錄「華嚴宗七祖行蹟」及「附錄」）)