Pierre (pieter) Oyens ( 1842 - 1894 ) was a Belgian painter. Pierre (pieter) Oyens s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 654.54 USD for Study of a seated gentleman in 2004 to 7988.68 USD for Reading in the artists studio in 2005 , based on the size and medium of the artwork.