David Oyens (29 July 1842 in Amsterdam – 11 February 1902 in Brussels) and Pieter Oyens (29 July 1842 in Amsterdam – 16 February 1894 in Brussels), identical twins, were Dutch painters who specialized in genre scenes. They both spent most of their careers in Brussels.... They shared a studio in Sint-Joost-ten-Node and often served as models for each other. [https://en.wikipedia.org/wiki/Oyens_brothers]