The establishment of a distinct Aromanian national consciousness, however, was hampered by the tendency of the Aromanian upper classes to be absorbed in the dominant surrounding ethnicities, and espouse their respective national causes as their own. So much did they become identified with the host nations that Balkan national historiographies portray the Aromanians as the "best Albanians", "best Greeks" and "best Bulgarians", leading to researchers calling them the "chameleons of the Balkans". Consequently, many Aromanians played a prominent role in the modern history of the Balkan nations: the revolutionary Pitu Guli, Greek Prime Minister Ioannis Kolettis, Greek magnate Georgios Averoff, Greek Defence Minister Evangelos Averoff, Serbian Prime Minister Vladan Đorđević, Patriarch Athenagoras I of Constantinople, Romanian metropolitan Andrei Şaguna, the Wallachian and Moldavian rulers of the Ghica family, etc.