Envoys from Ragusa (Dubrovnik, Croatia) were the first to have informed the Hungarian leaders of the preparations that Mehmed II had made for an invasion against Hungary. In a letter addressed to Hunyadi, whom he styled as "the Maccabeus of our time", the papal legate, Cardinal Juan Carvajal made it clear that there was not much chance of foreign assistance against the Ottomans. With the Ottomans' support, Vladislav II of Wallachia even plundered the southern parts of Transylvania in late 1455.