Ō clan

Ō clan (多氏, Ō no uji, also written as 大氏) is a descendant clan of Jimmu and Himetataraisuzu-hime.

He became head of the clan in 716 around the time he wrote the Kojiki.

[3][4] Takemikazuchi was originally a local god (kunitsukami) revered by the Ō clan,[5] and was a god of maritime travel.

Or so this is the observation by Iwao Ōwa [ja] in his Jinja to kodai ōken saishi (1989).

He goes on to theorize that the Ō clan was originally ōmi (大忌, "greater taboo (priesthood)"), but was usurped by the Nakatomi who were among the "lesser priesthood" (the latter claims descent from the Inbe clan (忌部氏)).