Prince John Constantinovich of Russia

Russian prince (1886-1918) (1886–1918)

Parents

• Grand Duke Konstantin Konstantinovich of Russia
• Princess Elisabeth of Saxe-Altenburg

Children

• Vsevolod Ivanovich of Russia
• Princess Catherine Ivanovna of Russia

Siblings

• Prince Gabriel Constantinovich of Russia
• Prince Oleg Konstantinovich of Russia
• Prince Georgy Konstantinovich of Russia
• Prince Constantine Constantinovich of Russia
• Princess Tatiana Constantinovna of Russia
• Prince Igor Constantinovich of Russia
• Princess Vera Constantinovna of Russia
• Natalya Konstantinovna Romanova, Princess of Russia

Partners

• Princess Jelena of Yugoslavia