François Kollar And Willy Ronis ( - ) is a painter. François Kollar And Willy Ronis s works have been auctioned off multiple times, with realized prices varying according to the size and medium of the artwork, for instance of 422.85 USD for Ch√¢teau Truffon - Paysages du sud de la France ann√©es 1930 et 1950 in 2007