Fritz Möritz mainly painted animals and hunting scenes, but also a single genre scene, in an impressionistic style. He first trained as a graphic artist, after which he went to the art academy in Düsseldorf. From 1955 to 1960, Möritz worked in Brussels with his uncle Cornelis Bender, who was a restorer at the Royal Museum of Fine Arts in Brussels. Möritz says he was very much inspired by the work of the Düsseldorf landscape painter Hugo Mühlig.