Question: What is the date of death of Princess Anastasia Of Montenegro's mother?
Sentence (from "Princess Anastasia of Montenegro"): She and her sister "Militza" (Princess Milica), having married Russian royal brothers, were known colloquially as the "Montenegrin princesses" during the last days of Imperial Russia, and may have contributed to its downfall by the introduction of Grigori Rasputin to the Empress Alexandra.
Relevant evidence: No