His Highness Prince Constantine Constantinovich

Sources of biographical information

Birth: Date and time: Medical bulletin. Published in Governmental Herald, 1890, # 279, December 21 (January 2, 1891), page 1.

Title: Ukase of Emperor Alexander III to Senate given in Gatchina on December 22, 1890, (January 3, 1891). Published in Governmental Herald, 1890, Addition to # 281, December 24, (January 5, 1891), and # 282, December 25, (January 6, 1891), page 1.

Christening: Highestly Approved Ceremonial of the Saint Baptizm of His Highness Prince Constantine Constantinovich. Published in Governmental Herald, 1891, # 10, January 12 (24), page 1. and Domestic news, Governmental Herald, 1891, # 12, January 15 (27).