[5][6] Born in Zalău,[4] he studied theology at Babeș-Bolyai University in Cluj-Napoca, and was consecrated priest of the Romanian Greek Catholic Church in Oradea.

[7] In May 2020, Terheș declared his transition to the National Peasant Christian Democratic Party and the European Conservatives and Reformists group.

[11] His application was rejected by the ECtHR on grounds of inadmissibility, with the Court noting that the measures "could not be equated with house arrest" and that Terheș had failed to explain their impact on his personal situation.

[12] In February 2022, he criticized in a press conference Prime Minister Justin Trudeau's handling of the Canada convoy protest, comparing him with Nicolae Ceaușescu.

[13] In August 2023, he accused the European Union of introducing an "Orwellian ministry of truth" to tackle fake online news.