John Constantinovich Prince of Russia
- Category : Notable-Famous-Royal-family
- Type : GE
- Profile : 4/6 - Opportunistic / Role Model
- Definition : Triple Split
- Incarnation Cross : RAX Tension 2
Russian royalty, a member of the Romanov family.
He was murdered by Bolshevik soldiers, thrown into a mine shaft with other family members and left to die on 18 July 1918 near Alapayevsk, Russia.