Bernardo Keilhau Monsù Bernardo (attributed To) ( 1624 - 1687 ) was an Italian painter. Bernardo Keilhau Monsù Bernardo (attributed To) s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 2160 USD for TWO YOUNG MUSICIANS in 2006 to 24161.26 USD for Les musiciens in 2011 , based on the size and medium of the artwork.