Maria Giovanna Battista Clementi ( 1690 - 1761 ) was an Italian painter. Maria Giovanna Battista Clementi s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 4678 USD for Prinz Vittorio Amadeo Teodoro von Savoyen, Herzog von Aosta in 2014 to 15964.24 USD for RITRATTO DI CARLO EMANUELE III (1701-1773), III RE DI SARDEGNA in 2017 , ba