The mystery of Giocondas

"La Gioconda" in El Prado has been pointed out for many years as a "copy" of the most famous painting in the world: "The Mona Lisa".
Its recent restoration has shown that the Gioconda del Prado is not a copy, but this has only fueled the mystery that surrounds the two twin artworks...
Could they be the portrait of Lisa Gherardini, of Beatrice D'Este, of Elizabeth of Naples, of Cecilia Gallerani... or of Leonardo himself?
Are Giocondas the portrait and self-portrait of Salai, his beloved disciple?
Will two works be painted by Leonardo?
Will it be a directed work of his also dear and loyal disciple Francesco Melzi?
How many Giocondas were painted?...
This is the video version about the note by Pilar Roldán that the Argentine magazine 5 artes published on her day. (2013)