Prince John Konstantinovich of Russia, formerly Grand Duke John Konstantinovich of Russia, sometimes also known as Prince Ivan, Prince Ioann or Prince Johan, was the eldest son of Grand Duke Konstanti
Prince Ioann Konstantinovich of Russia in his military uniform of the Imperial Russian Army (1913)
Grand Duchess Elizabeth Mavrikievna of Russia was a Russian grand duchess by marriage. She was the wife of Grand Duke Konstantin Konstantinovich of Russia.
Prince John Konstantinovich of Russia
…as Prince Ivan, Prince Ioann or Prince Johan, was the eldest son of Grand Duke Konstantin Konstantinovich of Russia and Yelizaveta Mavrikievna, née Princess Elisabeth of Saxe-Altenburg. He was described by contemporaries as a gentle, religious person, nicknamed "Ioannchik" by his relatives. Ioann Konstantinovich was born in Pavlovsk…
Princess Elizabeth of Saxe-Altenberg, later Grand Duchess Elizabeth Mavrikievna of Russia, in the 1890s
Princess Elisabeth of Saxe-Altenburg on her wedding day.
Grand Duchess Elizabeth Mavrikievna and her daughter, Princess Tatiana Konstantinovna