Saruta-hiko

Sarutahiko Ōkami (猿田毘古大神, 猿田彦大神), is the leader of the earthly kami, deity of the Japanese religion of Shinto. Norito also mentions him with the title Daimyōjin (大明神 great bright god, or greatly virtuous god) instead of Ōkami (大神 great god).

Sarutahiko Ōkami is seen as a symbol of Misogi, strength and guidance, which is why he is the patron of martial arts such as aikido. He enshrined at Tsubaki Grand Shrine in Mie Prefecture, first among the 2000 shrines of Sarutahiko Ōkami, Sarutahiko Jinja in Ise, Mie and Ōasahiko Shrine in Tokushima Prefecture. In the Nihon Shoki, he is the one who greets Ninigi-no-Mikoto, the grandson of Amaterasu, the Sun goddess, when he descends from Takama-ga-hara. He is depicted as a towering man with a large beard, jeweled spear, ruddy face, and long nose. At first he is unwilling to yield his realm until persuaded by Ame-no-Uzume-no-Mikoto, the kami of dance and the arts, whom he later marries.

His Paredros and children created the Sarume no Kimi (猿女の君) clan along with an order of female court and religious dancers. It was the origin of Kagura and Noh. Other descendants includes the Ujitoko clan from Ise province. According to Kojiki, he went in Ise where a giant clam trapped his hand on Isuzu river at Azaka, thus he drowned. But strangely, Sarutahiko was considered by Ueshiba Morihei as a kind of god of the cosmic life : the god of Aiki. According to O-Senseï, the practice of Aikidō was practice of Misogi purification itself (and thus, like Sarutahiko standing of Ame-no-Ukibashi, standing between Heaven and Earth, being one with the Universe, and so achieving peace with the world, the next step being World Peace itself)... which doesn't fit very well this Kojiki story of Sarutahiko's death (although it is unknown if he really died from it).

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Wikipedia