While we may know little about the man, the time and place in which Daogong lived certainly placed him in the middle of one of the most productive, even explosive, periods in Chinese Buddhist history. The monk-translators listed as contemporaries or near contemporaries of Daogong, and residing in the same region, are Fazhong, Sengqietuo, and Dharmakṣema. (Silk, "The Origins and Early History of the Mahāratnakūṭa," 671–72)
Notes
2. This was, I have lately noticed, also the conclusion of Bagchi 1927:211. As far as I can tell from the relevant indices, Daogong is not mentioned in the Chinese dynastic histories either.