Kammala jumla mai zuwa: A wannan lokacin ya ga an jawo shi cikin Austrian da
Juyin Juya Halin Hungary. Kamar yawancin 'yan Romania, Mocioni ya goyi bayan sauye-sauyen' yanci na tsohon, kuma ya kasance mai aminci ga Franz Joseph I, yana adawa da hauhawar kishin kasa na Hungary. Wannan ya sa ya yi adawa da mai juyin juya halin Hungary Eftimie Murgu, wanda ya sami amincin wasu 'yan Banati. Gwamnatin Hungary ta amsa ta kwace dukiyar Mocioni kuma ta tilasta masa yin gudun hijira. A watan Satumbar 1849, ya kasance a Vienna, inda ya yi aiki a matsayin wakilin Romania, tare da Ioan Dobran da Vincențiu Babeș. Petru Mocioni ya kuma kasance mai aiki a can a matsayin "mutumin amintacce" na 'yan Romania na Banatian, yana gabatar da Franz Stadion tare da wasu shawarwarin siyasa a madadin su.