<Li> Nicephorus III, Byzantine Emperor Botaniates </Li> <Li> Nicholas I of Montenegro the Father - in - law of Europe </Li> <Li> Nicholas I of Russia the Don Quixote of Russian Absolutism, the Iron Czar, the Iron Hand . the Policeman of Europe,, the Iron Emperor </Li> <Li> Nicholas II of Russia Bloody Nicholas, the Martyr, Tzar - Cloth </Li>

Who is called as the policeman of europe