The Romanian cause was frustrated by the creation of Austria-Hungary, which placed the Metropolis within a centralized Transleithanian Hungary. As Slavici reports, already by time of the Venetian crisis, which rekindled Hungarian nationalism, there were points of contacts between Ivačković and the Hungarians of Arad. The latter agitated among the Serbs and Romanians, hoping to obtain their support for a break with Austria, and to this end held an illuminated procession outside the bishop's residence. Prokopije's nephew, known as György (or George) Ivácskovics, saluted this trend and became Magyarized. Rallying with the Deák Party and then the Hungarian Liberals, he served two non-consecutive terms as Csákova deputy in the Diet of Hungary. In this context, he was noted for rejecting the notion that deputies were ethnic representatives, declaring himself a servant of the country as a whole. According to "Gura Satului", this stance angered his uncle, who viewed György as incompetent. In 1867, intellectuals from the Principality of Romania began pushing for a reunified Dacia (or Greater Romania). The irredentist "Transilvania" Society, created that year, elected bishops Ivačković and Șaguna on its steering committee. From January 1865, both, alongside Andrei Mocioni, had been honorary members of a similar nationalist group, the "Bucovina" Society.