Alfredo Palmero De Gregorio ( 1901 - 1991 ) was a Spanish painter. Alfredo Palmero De Gregorio s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 920 USD for BALLERINA in 2004 to 3167.49 USD for La vendeuse de fleurs à Paris in 2012 , based on the size and medium of the artwork.