Dianne Hales notes that painter and art theorist Gian Paolo Lomazzo also seems to identify two versions of the painting noting that "Lomazzo, a supposed acquaintance of Leonardo's longtime secretary Melzi, wrote that 'the two most beautiful and important portraits by Leonardo are the "Mona Lisa" and the "Gioconda"". The hypothetical first portrait, displaying prominent columns, would have been commissioned by Giocondo circa 1503, and left unfinished in Leonardo's pupil and assistant Salaì's possession until his death in 1524. The second, commissioned by Giuliano de' Medici circa 1513, would have been sold by Salaì to Francis I in 1518 and is the one in the Louvre today. Those who believe that there was only one true "Mona Lisa" have been unable to agree between the two aforementioned fates.