The papal legate, Brancaleoni, travelled through Hungary, but he was arrested at Keve (now Kovin in Serbia) on the Hungarian–Bulgarian frontier. Emeric of Hungary urged the cardinal to summon Kaloyan to Hungary and to arbitrate in their conflict. Brancaleoni was only released at the Pope's demand in late September or early October. He consecrated Basil primate of the Church of the Bulgarians and Vlachs on 7November. Next day, Brancaleone crowned Kaloyan king. In his subsequent letter to the Pope, Kaloyan styled himself as "King of Bulgaria and Vlachia", but referred to his realm as an empire and to Basil as a patriarch.