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 Russia
After her daughter-in-law's death, Catherine began work forthwith on the project of finding another wife for Paul, and on 7 October 1776, less than six months after the death of his first wife, Paul married again. The bride was the beautiful Sophia Dorothea of Württemberg, who received the new Orthodox name Maria Feodorovna. Their first child, Alexander, was born in 1777, within a year of the wedding, and on this occasion the Empress gave Paul an estate, Pavlovsk. Paul and his wife gained leave to travel through western Europe in 1781–1782. In 1783, the Empress granted him another estate at Gatchina, where he was allowed to maintain a brigade of soldiers whom he drilled on the Prussian model, an unpopular stance at the time.