Paul I of Russia
Paul I (; "Pavel Petrovich") ( – ) reigned as Emperor of Russia between 1796 and 1801. Officially, he was the only son of Peter III and Catherine the Great, though Catherine hinted that he was fathered by her lover Sergei Saltykov, who also had Romanov blood, being a descendant of the first Romanov tsar's sister, Tatiana Feodorovna Romanova.
Paul I of Constantinople
Paul was later loaded with chains and taken to Singara in Mesopotamia, then to Emesa, and finally to Cucusus in Cappadocia. Here he was confined in a close, dark place, and left to starve to death. After he had passed six days without food, he was, to the great disappointment of his enemies, found alive. Upon which they strangled him, and gave out that he died after a short sickness.