It is said that Michizane's mother left but came back to this area, the stronghold of the Sugawara clan, where she gave birth to him, and it is also said that she used the water of the pond located in the east of the shrine (at present this pond is called 'the birth pond') for ubuyu (a baby's first bath).
「道真の母が菅原氏の本拠であるこの地に戻って道真を出産した」と伝えられており、神社の東にある池（現在は「誕生池」と呼ばれる）の水を産湯に使ったとも伝わる。