In the official history, the names of the deities can be certainly identified in the description in a historical material in 806, which describes four jinfu (vassal households allotted to courtier, shrines and temples) were allotted to Hayatama-no-Kami and Kumano-Fusubi-no-Kami respectively, and it is thought that these two deities were enshrined together in Kumano-shin village that is identified as current Shingu City.
正史において、神名が確実に確認できるのは大同元年（806年）の史料中にある記述で、天平神護2年（766年）付で速玉神と熊野牟須美神にそれぞれ4戸の神封を施入したとあるもので、これら2柱の神は今日の新宮市に比定される熊野神邑（くまのしんそん）に一緒に祀られていたと見られる。