In Hungary, Ferenczy started painting in a naturalistic style, as he had been influenced by Jules Bastien-Lepage.
Károly Güttler | Károly Várszegi | Károly Palotai | Károly Makk | Károly Lotz | Károly Kós | Károly Kisfaludy | Károly Hornig | Károly Ferenczy | Károly |
His essays written together with his wife on the history of art Forradalom a művészetben: Absztrakció és szürrealizmus Magyarországon (1947, Revolution in Art: Abstraction and Surrealism in Hungary) survey Hungarian art from Károly Ferenczy, Tivadar Csontváry Kosztka and Lajos Gulácsy up to the activity of the “European School”.