After obtaining a divorce for Olga and in defiance of strong family opposition, Grand Duke Paul married her in October 1902.
As he contracted a morganatic marriage with a divorcée in defiance of the Tsar's prohibition, Grand Duke Paul was banished from living in Russia and deprived of his titles and privileges.
During the last days of the Tsarist period, he was one of the few members of the Romanov family who remained close to Tsar Nicholas II and his wife, Alexandra Feodorovna.
After the fall of the Russian monarchy, Grand Duke Paul initially remained at his palace in Tsarskoe Selo during the period of the provisional government.
In declining health, he was shot by the Bolsheviks with other Romanov relatives in the courtyard of the Peter and Paul Fortress in January 1919, and his remains were thrown into a common grave.
[5] Grand Duke Paul's early years were spent at Tsarskoye Selo and at the Winter Palace in Saint Petersburg, with vacations at Livadia, the family's Crimean retreat.
As time passed and the Empress’ health dictated her to avoid the harsh Russian climate, the Tsarina spent long sojourns abroad with her three youngest children in Jugenheim outside Darmstadt, and the winters in the south of France.
[18] The treasures of the house included the white marble staircase, the sitting room decorated with caryatids, the oak-paneled library, and the concert hall with portraits of great composers and panels depicting The Four Seasons.
[12][17] At their return to Russia, he was appointed commander of the imperial house guards at Krasnoye Selo and, therefore, he was usually away fulfilling his military duties.
[22][23] 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.
There was only an eight-year gap between uncle and nephew and Paul had known Nicholas II's wife, Alexandra Feodorovna, since she was a little girl, when in his youth he made many visits to his mother's native Darmstadt.
[27] In 1900, he bought a mansion in Bois de Boulogne that had previously belonged to Princess Zenaida Ivanovna Yusupova, intending to settle there and marry Olga once she would obtain a divorce.
Emperor Nicholas II wrote to his mother: "The nearer the relative who refuses to submit to our family statutes the graver must be his punishment.
And into what an awkward and disagreeable position it puts you, my poor Nicky, you who will have to punish him, because such an act cannot remain unpunished, and, into the bargain, marrying a divorced woman!".
[37][38] In 1904, Grand Duke Paul arranged, through Luitpold, Prince Regent of Bavaria, for his wife and their children to be granted the hereditary title of Count and Countesses de Hohenfelsen with a coat of arms.
[37] With the assassination of his brother Sergei in February 1905, Grand Duke Paul was allowed to return to Russia for the funeral, but Olga was denied entrance that April to attend the promotion of her son Alexander Pistohlkors as an army officer.
[34] They lived in style employing a household staff of sixteen maids, gardeners, cooks, and tutors and they were avid art and old porcelain collectors.
[38] At their mansion in Boulogne-sur-Seine, they had a hectic social life offering dinners and lavish receptions entertaining writers, artist and Russian abroad.
[38] Although he was not consulted in the engagement of his daughter Grand Duchess Maria Pavlovna to Prince Wilhem of Sweden, Paul attended the wedding on 3 May [O.S.
[39][40] In 1912, on the occasion of Dmitri reaching his majority, Tsar Nicholas II, finally relented and pardoned his only surviving uncle, restoring Grand Duke Paul's titles and privileges.
[46] After a difficult spell at the front under heavy enemy bombardment at the village of Sokoul, he was awarded a St George's Cross 4th class, one of the most coveted military decorations.
[47] Due to his bad health, the grand duke was moved, in September 1916, to a new appointment as inspector general of the Guard at the Tsar's headquarters and his son, Vladimir, was placed under his orders.
Maria Feodorovna and her son-in-law, Grand Duke Alexander Mikhailovich, enlisted Paul's help in order to persuade Nicholas II and his wife of the need for change and to get rid of Rasputin's damaging influence.
[44][50] Nevertheless, he was able to retain Nicholas II and Alexandra's confidence even after it was shaken with Paul's son Dmitri's involvement in Rasputin's murder in the early hours of 30 December [O.S.
[44][53] At the fall of the Russian monarchy in March 1917, Grand Duke Paul, his wife, and their children remained united living at their luxurious estate in Tsarkoe Selo amid the upheaval.
[54] As Tsar Nicholas II and his family were sent to internal exile in Siberia, the Provisional Government, led by Alexander Kerensky, placed Paul under house arrest on 9 September [O.S.
[56] Through the intervention of his daughter, Grand Duchess Maria Pavlovna of Russia, whose second wedding he was not able to attend, the guards in charge of overseeing his house were removed.
[61] In March 1918, all male members of the Romanov family, including Paul's son, Vladimir, were ordered to register at Cheka headquarters and shortly after they were sent away into internal Russian exile.
[64] A week later, Grand Duke Paul was offered, through the Danish Ambassador, Harald Scavenius, to be smuggled out of the country and taken to Vienna wearing an Austrian uniform with a convoy of returning prisoners of war.
[65] Queen Alexandrine of Denmark, a niece of Grand Dukes Nicholas and George Mikahilovich, tried unsuccessfully to obtain the release of her Romanov relatives through the intervention of Harald Scavenius, the Danish Minister in Petrograd.