Tango-no-tsubone was a real historical woman, a lady-in-waiting associated with the Kamakura-period shogunate, who over time became venerated at certain shrines as a spirit invoked in connection with fertility and safe childbirth. Little is confirmed about her life beyond fragmentary historical and legendary accounts, and her elevation to a protective figure in this domain reflects popular devotional tradition rather than settled doctrine. Worshippers have historically sought her favor for matters of conception and childbirth, though such benefits are traditional beliefs rather than verified claims.