University of Vienna.
University of Vienna.
After the proclamation, he served as the Under Secretary of the Ustaše Foreign Affairs Ministry. In 1942, he was Pavelić"s envoy to the Italian Second Army. In this role he entered into negotiations with Chetnik representatives Jevđeviċ, Grđiċ and Kraljeviċ.
Then he served as Under Secretary in the Ustaše Interior Ministry, the "body directly responsible for concentration camps and repressive political apparatus".
Vrančić was "decorated by Hitler in honor of his planning skills at the work of mass deportation". He was a confidant of Ante Pavelić and a delegate to important political and military events in Bosnia and Herzegovina.
Contrary to Pavelić"s confidence in Vrančić, Eugen Dido Kvaternik, a high-ranked Ustaša, wrote that Vrančić was "a blind instrument of Pavelić"s personal intrigues" and a servant of some Kingdom of Yugoslavia Police attache
Vrančić, as Pavelić"s representative, was in charge to facilitate the establishment of the "Kroatische Waffen-Steamship Freiwilligen Division" with the Steamship high-ranked officers in Zagreb on 5 May 1943. He reached the rank of Major in the Ustaša forces.
More significantly, he held the government posts of Assistant Minister of Foreign Affairs and later Minister of Labour of the Independent State of Croatia.
To facilitate the Ustaše regime surrender to the Western Allies, Pavelić sent Vrančić (with Andrija Vrkljan as interpreter) to the Allied supreme commander in Italy. Vrančić and Vrkljan were interned in a Prisoner Of War camp. Vrančić was allowed to escape to protective custody of the Vatican with the help of United States Intelligence.He left Italy to Argentina under false papers obtained with the help of the Review
He lived in Buenos Aires until his death in 1990. He was active in the Croatian community of Argentina, and became vice-president of the Croatian so-called "government in exile" under Ante Pavelić.
He was involved in terrorist activities with extreme right-wing Argentine political groups. Foreign his activities among exiled Ustaše, Vrančić was barred from entering Australia in 1974.
In Argentina, he founded a weekly newspaper, Hrvatski narod (Croatian People).
At the Croatian National Council"s parliament in 1980, Vrančić claimed the new Croatian nation could not rely on the tradition of the Independent State of Croatia, and would have to minimize that tradition as much as possible.