The beginnings of the high school are to be found in the St. Benedictus High School run by Benedictine monks from 1923 at a site very close to the present location. After the Communist takeover the school was nationalised and continued under the present name. The proximity of the Pedagogical Seminary allowed for close and deepening cooperation. In 1960 the high school was transformed into a training high school to extend the model (already successful for elementary schools) to the entire 12 years of education. The high school moved to the present building and the full, official name became Fazekas Mihály Fővárosi Gyakorló Általános Iskola és Gimnázium.