Guglielmo Cortese ( 1628 - 1679 ) was an Italian painter. Guglielmo Cortese s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 553.43 USD for Studienblatt mit Reitern und Pferden in 2005 to 6820.51 USD for Schlachtfeld mit Kavallerie in 2011 , based on the size and medium of the artwork.