 The identification of the sitter is based on the old, but probably not original, inscription on the windowsill at the bottom of the picture "Smeralda di M.Bandinelli Moglie di VI... Bandinelli", who has been identified as the grandmother of the sculptor Baccio Bandinelli.It is likely that the inscription was added at a later date, as the sculptor only took that surname in 1530.On the evidence of the inscription, the portrait may be of Esmeralda (Smeralda) Donati Brandini, the wife of Viviano Brandini, mother of the prominent Florentine goldsmith Michelangelo de Viviano de Brandini of Gaiuole, and grandmother of the sculptor Baccio Bandinelli (the son of Michelangelo and his noble wife Catarina, a daughter of Taddeo Ugolino).