In 1553, Antun Vrančić, Roman cardinal, and Franjo Zay, a diplomat, visited Istanbul as envoys of the Croatian-Hungarian king to discuss a peace treaty with the Ottoman Empire. During the initial ceremonial greetings they had with Rüstem Pasha Hrvat (a Croat) the conversation led in Turkish with an official interpreter was suddenly interrupted. Rustem Pasha Hrvat asked in Croatian if Zay and Vrančić spoke Croatian language.