Question: When did Grand Duchess Elena Vladimirovna Of Russia's mother die?
Sentence (from "Duchess Marie of Mecklenburg-Schwerin"): Duchess Marie of Mecklenburg-Schwerin (later Grand Duchess Maria Pavlovna of Russia, known as "Miechen" or "Maria Pavlovna the Elder"; 14 May 1854 – 6 September 1920) was born Marie Alexandrine Elisabeth Eleonore of Mecklenburg-Schwerin, daughter of Grand Duke Frederick Francis II of Mecklenburg-Schwerin and Princess Augusta Reuss of Köstritz.
Relevant evidence: Yes