This painting, like the painting inside the lost original
lid of this
harpsichord,
shows Andromeda being rescued from the sea monster by Perseus.This scene was often used as an allegory of
Naples:it represents Naples (the
beautiful Andromeda) being rescued by Spain (the handsome Perseus) from the
Papal States (the ugly and vicious sea monster)!
The
original painting on which this is closely based is
dated c.1610 and is by Jacopo Palma il Giovane (1544-1626) and is in the
Gemäldegalerie, Kassel (Inv. No. GK500).