Prince Nikita Alexandrovich of Russia died on 1974-09-12.
Prince John Constantinovich of Russia died on 1918-07-18.
Prince Georgy Konstantinovich of Russia died on 1938-11-07.
Oleg Mokshantsev died in 2007, in Russia.
Oleg Golubitsky died on September 7, 1995, in Moscow, Russia.
Oleg Lundstrem died on October 14, 2005, in Moscow, Russia.
Oleg Safronov died on September 9, 2006, in Moscow, Russia.
Oleg Yanchenko died on January 12, 2002, in Moscow, Russia.
Oleg Nikolayevsky died on March 8, 1998, in Yekaterinburg, Russia.
Oleg Shejntsis died on July 16, 2006, in Moscow, Russia of natural causes.
Oleg Yankovskiy died on May 20, 2009, in Moscow, Russia of pancreatic cancer.
Vasily Konstantinovich died in 1308.
Dmitry Konstantinovich Belyaev died in 1985.
Alexander Konstantinovich Benckendorff died in 1917.