Fray Guillermo Butler ( 1880 - 1961 ) was an Argentine painter. Fray Guillermo Butler s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 2240 USD for CONVENTO DE CÓR in 2004 to 4260 USD for CAPILLITA DE MONTAÑA in 2004 , based on the size and medium of the artwork.