In the tenth month of an unknown year, after 20 days—

Minamoto no Yorimitsu and Watanabe no Tsuna of the Four Heavenly Kings exterminated the tsuchigumo of Rendai.

In the reign of Emperor Saga (809-825)—

Minamoto no Yorimitsu and Watanabe no Tsuna of the Four Heavenly Kings exterminated the hashihime in the capital.

In the reign of Emperor Sutoku, in the sixth year of the Houen Era (1140)—

The imperial samurai Sato Norikiyo escaped his broken heart by kicking his 4-year-old child from the veranda and becoming a monk. He later took the name Saigyou.

Reference: Tsuchigumo Soushi

Reference: Kyouka Hyaku Monogatari

Reference: Saigyouzou