Prince John Constantinovich of Russia Prince Ioann Konstantinovich of Russia
Russian prince (1886-1918)
- Sex or Gender:
- male
- Date of Birth:
- 1886-07-05
- Place of Birth:
- Павловск (at present: Pavlovsk)
- Date of Death:
- 1918-07-18
- Place of Death:
- Alapayevsk
- Country of citizenship:
- Russian Empire
- Spouse:
- Princess Jelena of Yugoslavia
- Occupation:
- politician
military personnel - Viaf ID:
- 316737202
