Question: What is the date of death of Danilo, Crown Prince Of Montenegro's mother?
Sentence (from "Milena of Montenegro"): Milena Petrović-Njegoš (4 May 1848 – 16 March 1923) was the only Queen consort of Montenegro as the wife of King Nicholas I of Montenegro (28 August 1910 – 26 November 1918).
Relevant evidence: Yes