Born in Pirmasens , Rheinpfalz1877, died in Vienna 1946. Studied at the Academy of Fine Arts in Weimar, Germany, under the guidance of professor Theodor Hagen. Between 1896 and 1898 was pupil of Prof. Frijof Smit and Max Thedy as well as student of the Art Institute of Frankfurt at the professor Marr. In the first decade of 1900 he made study trips to Paris, Switzerland, Hungary, Dalmatia and Russia. In Russia he became friend of the Tolstoy family where he made portrait of Leo Tolstoy Was soldier and war painter in the Great War in various fronts. In the 1920s and 1930, Hanns Diehl was prominent person in the Vienna art life. He died very quickly after the end of the Second World War. His paintings are in Austrian and German museums.
Hanns Diehl-Wallendorf visited Ohrid in the first decade of the 1900s, very likely as a part of his study trips from that time. He made the pastel drawing entitled “Am Ochrida See” – view at the St. Naum monastery, purchased by the author from the Art Gallery “Hieke” Vienna.