His Highness Prince Ioann Konstantinovich of Russia (Иоанн Константиович) (July 5, 1886–July 18, 1918) was the elder son of HIH Grand Duke Konstantin Konstantinovich of Russia by his wife Elisaveta Mavrikievna née HH Princess Elisabeth of Saxe-Altenburg. He was a gentle, religious human being, nicknamed Ioannchik by his relatives. July 5 is the 186th day of the year (187th in leap years) in the Gregorian Calendar, with 179 days remaining. ... 1886 (MDCCCLXXXVI) is a common year starting on Friday (click on link to calendar) // Events January 18 - Modern field hockey is born with the formation of The Hockey Association in England. ... July 18 is the 199th day (200th in leap years) of the year in the Gregorian Calendar, with 166 days remaining. ... 1918 (MCMXVIII) was a common year starting on Tuesday of the Gregorian calendar (see link for calendar) or a common year starting on Wednesday of the Julian calendar. ... Grand Duke Konstantin Konstantinovich of Russia. ...

He once entertained the possibility of becoming an Orthodox monk, but eventually fell in love with the fair and strong-willed HRH Princess Jelena of Serbia, and married her on September 2, 1911, and Jelena took the name HH Princess Elena Petrovna of Russia. They were a very happy couple, blessed on January 20, 1914 with a son, HH Prince Vsevolod Ioannovich, and on July 25, 1915 with a daughter, HH Princess Ekaterina Ioannovna, who was the last member of the Imperial Family to be born before the fall of the dynasty.

Prince Ioann fought in the First War War and was decorated as a war hero. When the Revolution started he was at the front and escaped a general massacre of officers because his men said he treated them fairly. In April 1918 he was exiled to the Urals by the Bolsheviks, and later murdered in an atrocious way in a mineshaft near Alapaevsk, along with his brothers HH Prince Konstantin Konstantinovich and HH Prince Igor Konstantinovich, his cousin His Highness Prince Vladimir Pavlovich Paley, and other relatives and friends. Look up April in Wiktionary, the free dictionary. ... 1918 (MCMXVIII) was a common year starting on Tuesday of the Gregorian calendar (see link for calendar) or a common year starting on Wednesday of the Julian calendar. ... It has been suggested that this article or section be merged into Grand Duke Constantin Constantinovich of Russia. ... It has been suggested that this article or section be merged into Grand Duke Constantin Constantinovich of Russia. ... Russian poet, born in Saint Petersburg on January 9, 1897. ...

His body was eventually buried in Beijing, in the cemetery of the Russian Orthodox Mission, which was destroyed years later to build a park.