Before St. Petersburg became what it is today, the finest of all Russian cities full of magnificent palaces, grand churches, and impressive monuments, the center of power lay in the citadel that Peter the Great himself founded, the Fortress of Peter and Paul. It was from here that the Russian Empire exercised its constabulary might; using the island-fortress as a prison for political opponents and execution site for those the empire deemed too dangerous to live. Despite that rather grim reputation; however, the fortress contains what is perhaps the greatest treasure of the former Russian Empire. For it is here that all the Russian Emperors and Empresses, Princes and Princesses are entombed. * And for contemporary standards, there is no more famous Russian royal family than that of Tsar Nicholas II, the last Emperor of Russia.