Abe no Seimei was a 10th-century onmyōji who served the imperial court during Japan's Heian period. Born in 921, he practiced onmyōdō, a system combining astronomy, divination, and spiritual practices based on Chinese yin-yang philosophy. He served multiple emperors until his death in 1005 at age 84. The shrine was established in 1007 on the site of his former residence by order of Emperor Ichijō to honor his service to the court.