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.
Grand Duke Paul Alexandrovich of Russia
Grand Duke Paul was deeply affected by Alexandra's death. It took him a long time to overcome his depression. During this period, his brother Sergei and Sergei's wife took care of Paul's motherless children in a pattern of behavior that it would be repeated in the years to follow. In his widowhood, the grieving grand duke moved to Tsarskoye Selo, leaving his palace in St Peterburg that had been his home with Alexandra to never return. For a long time, the palace stood vacant. After that, the building changed many hands over time. When the revolution ended, the mansion was sold to the Russian Society for the Production of Equipment and Military Supplies. Eventually it became home to various Soviet institutions.
The palace has survived to the present and today it is at the disposal of Saint Petersburg State University.