Oil/wood, 26 x 49 cm, lo. le. sign. a. dat. J. Haag 1876. - Austrian painter. H. began as autodidact, later he continued his studies in the studio of T. Ajdukiewicz. He specialized in paintings of horses a. riders. He worked for archiduke Franz Ferdinand, prince Rudold a. many members of the Austrian aristocracy. - Mus.: Wien (Albertina). - Lit.: Thieme-Becker, Bénézit.