Carl Georg Anton Graeb ( 1816 - 1884 ) was a Swiss painter. Carl Georg Anton Graeb s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 3363.23 USD for Marktplatz von Piazenza in 2004 to 20442.29 USD for Courtyard of the Pazzi Chapel in the Basilica di Santa Croce in Florence in 2011 , based on the size and medium of the artwork.