In 1866 Sisley began a relationship with EugÃ nie Lesouezec ( 1834 -- 1898 ; also known as Marie Lescouezec ) . In 1866 Sisley began a relationship with EugÃ nie Lesouezec ( 1834 -- 1898 ; also known as Marie Lescouezec ) , a Breton living in Paris .