Battista Di Biagio Sanguign ( 1393 - 1451 ) was an Italian painter. Battista Di Biagio Sanguign s works have been put up for auction numerous times, with realized prices varying from 285164.22 USD for Saint John the Baptist and Saint Anthony Abbot: the right wing of an altarpiece in 2010 to 785000 USD for The Virgin of Humility in 2014 , based on the size and medium of the artwork.