Gonzalo Bilbao Martínez ( 1860 - 1938 ) was a Spanish painter. Gonzalo Bilbao Martínez s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 12648.59 USD for Jard√≠n con Jacarandas in 2004 to 26490.07 USD for Atardecer in 2006 , based on the size and medium of the artwork.