Robert Gardelle ( 1682 - 1766 ) was a Swiss painter. Robert Gardelle s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 789.19 USD for Por–trait von Alexandrine Fatio, Witwe des Stadtpräsiden–ten Pierre Lullin in 2008 to 13345.65 USD for Bildnis Albrecht Friedrich von Erlach in 2017 , based on the size and medium of the artwor