Her Imperial Highness Grand Duchess Helena Pavlovna
Sources of biographical information
Birth: Kammer-Furier Journal, December 13, 1784
Christening: Kammer-Furier Journal, December 22, 1784
Betrothal: Kammer-Furier Journal, May 5, 1799
Marriage: Kammer-Furier Journal, October 12, 1799
Death and Burial: Albina Danilova. Five princesses. Moscow: Izograph, EKSMO-Press, 2001.