Vague memories of a song from the 60s 'About a maiden is my song, sing rickety tickety tin....did great wrong...family....did every one of them in, them in, she did every one of them in.' Might have been Leon Rosselson or Tom Lehrer or suchlike.

Emma
'I robbed you for I wished to know if you my truelove was or no,
But now I have contented mind, my heart and hand are always thine'

More of a heroine than an anti-heroine really. We have no evidence she robbed anyone but her lover of his ring and that to test his love.