The first pan-Slavists were the 16th-century Croatian writer Vinko Pribojević and the 17th-century Aleksandar Komulović, Bartol Kašić, Ivan Gundulić and Croatian Catholic missionary Juraj Križanić. Some of the earliest manifestations of Pan-Slavic thought within the Habsburg Monarchy have been attributed to Adam Franz Kollár and Pavel Jozef Šafárik. The movement began following the end of the Napoleonic Wars in 1815. In the aftermath, the leaders of Europe sought to restore the pre-war status quo. At the Congress of Vienna, Austria's representative, Prince von Metternich, felt the threat to this status quo in Austria was the nationalists demanding independence from the empire. While their subjects were composed of numerous ethnic groups (such as Italians, Romanians, Hungarians, etc.), most of the subjects were Slavs.