Whakaotihia te rerenga e whai ake nei: I whakaoti a Fettich i te kura tuarua i Szombathely me Budapest. I te tau 1921, i puta ia i te Whare Wananga o Eötvös Loránd i Budapest i roto i te tohungatanga i roto i nga toi, me te tuhinga mo nga papa o te moemoea i te kawanatanga o Roma o Pannonia. Mai i te 1921 ki te 1923, he akonga ia mo te tari putorino o te Franz Liszt Academy of Music. I te tau 1926, i mahi ia i te Whare Taonga o Hungarian mo te Numismatic me te kohinga tawhito o te kawenga o te Migration Period. I te mea kua ako ia i te reo Ruhia, i tukuna ia hei tetahi o nga kairangahau anake o te Soviet Union mai i te 1929 ki te 1935. Ko ia te etita taketake o Folia Archaeology i te 1939. I te tau 1941, i tohua ia hei kaiwhakahaere o te Whare Taonga o Hungary. I te tau 1941, ka noho ia hei kaihanga koura. He maha nga whakaoranga i hangaia e ia mo te hitori. Whai muri i tana reti i te 1945, ka noho ia hei kaimahi tinana, engari i mahi tonu ia hei kaihanga koura. I te tau 1956, ko ia te kaituhi o etahi tuhinga putaiao. Mai i te 1957 tae noa ki tona matenga, he mema ia o te Creative Union of Goldsmith Artists. I te tau 1957, i uru ia ki
Expo 58 i Brussels. Mai i te 1959 ki te 1962, he mema ia o te Hungarian Academy of Sciences hei kaimahi kirimana mo te Roopu Rangahau Archaeological. I whakawhiwhia ia ki te Tohu Archaeology Hungarian me te hitori o te Toi o te Hapori Pūtaiao me te mema o te Helsinki Finno-Ugric Company. I tae atu a Fettich ki etahi kohinga kohinga.