A Bibliographical, Antiquarian and Picturesque Tour in France and Germany, Volume Three

Klein appears to have obtained his exquisite knowledge of animal painting from having been a pupil of GABLER a professed studier of natural history, and painter of animals. The pupil was unluckily absent from Nuremberg, when I was there but from many enquiries of his ultimate friends, I learnt that he was of a cheerful, social disposition fond of good company, and was in particular a very active and efficient member of a Society of Artists, which has been recently established at Nuremberg. Klein himself, however, resides chiefly at Vienna there not being sufficient patronage for him in his native city.