Category:Princess Helen of Serbia
Princess Jelena of Serbia (November 4, 1884 - October 16, 1962), later known as Princess Elena Petrovna of Russia, or sometimes Princess Helena Petrovna or Princess Helen Petrovna, or Princess Ellen Petrovna or Princess Hélène Petrovna, was the daughter of King en:Peter I of Yugoslavia and his wife Princess Zorka of Montenegro. She was the elder sister of en:George, Crown Prince of Serbia and Alexander I of Yugoslavia. Helen was also a niece of en:Anastasia of Montenegro, or Stana, wife of Grand Duke Nicholas Nikolaevich of Russia (1856-1929), and of Milica of Montenegro, wife of en:Grand Duke Peter Nicolaievich of Russia, the women who introduced Grigori Rasputin to Tsarina Alexandra.
A fourth aunt, Queen Elena of Italy, invited her for a visit and introduced her to Prince Ioann Konstantinovich of Russia. He proposed marriage soon after. It was a love match. The couple had two children, Prince Vsevelod Ivanovich (January 20, 1914 - June 18, 1973), and Princess Ekaterina Ivanovna born in Pavlovsk on (July 12, 1915 - died in Montevideo, Uruguay on July 14, 2007).