When Shigeie SHIBUYA, who had been without child for a long time, prayed for the birth of a child, he received the oracle of Kongoyashamyoo (金剛夜叉明王) and was blessed with a baby boy soon and therefore, he named his son Konnomaru (金王丸) using the first and last Chinese characters of 金剛夜叉明王 (Kongoyashamyoo).
なかなか子の授からない渋谷重家が祈願すると、金剛夜叉明王のお告げがあり、程なく男子が誕生したことから、金剛夜叉明王の上下の文字を戴き「金王丸」と命名したと言う。