Almanach de Gotha 1910
Almanach de Gotha 1915 "Russie. Maison Romanow-Holstein-Gottorp" (pp. 79-85)
Nouvel Almanach du Corps Diplomatique: Ancien Almanach de Gotha (C.A. Starke, 1914)
Wikipedia. "Almanach de Gotha"
Wikipedia. "House of Romanov"
Wikipedia. "List of Russian Rulers"
Wikipedia. "Nicholas II of Russia"
Wikipedia. "Alexandra Feodorovna (Alix of Hesse)"
Wikipedia. "Grand Duchess Olga Nikolaevna of Russia"
Wikipedia. "Grand Duchess Tatiana Nikolaevna of Russia"
Wikipedia. "Grand Duchess Maria Nikolaevna"
Wikipedia. "Grand Duchess Anastasia Nikolaevna"
Wikipedia. "Alexei Nikolaevich, Tsarevich of Russia"
