ERRO, HERRO. Hero was a priestess of Venus's temple at Sestos. Her lover Leander swam the Hellespont every night from Abydos to visit her. One night he drowned during a terrible storm, and Hero threw herself into the sea (Heroides XVIII and XIX; OM IV.3150-3586). Machaut also tells the story in Le Jugement dou roy de Navarre 3221-3310.
The Man of Law lists this story in his catalogue of Chaucer's works, MLI 69, but there is no story of Hero in The Legend of Good Women. Herro must bow before Alceste, the paragon of conjugal love, LGW F 263, LGW G 217. [Leandre]
Erro is a Chaucerian variant of Ero, Tes VI.62.2, MLT 69, and occurs in final rhyming position; Herro occurs initially, LGW F 263, LGW G 217. Both variants would have been pronounced alike since Latin initial h was not pronounced.