Danilo Aleksandar Petrović-Njegoš was the Crown Prince of Montenegro. He was the eldest son of King Nicholas I of Montenegro and Queen Milena Vukotić. Wikipedia
Born: June 29, 1871, Cetinje, Montenegro
Died: September 24, 1939 (age 68 years), Vienna, Austria
Great-grandparents: Stanko Petrović-Njegoš, Stevan Perkov Vukotić, Krstinja Vrbica, and more
Grandparents: Mirko Petrović-Njegoš, Petar Vukotić, Jelena Vojvodić, and more
Spouse: Duchess Jutta of Mecklenburg-Strelitz (m. 1899)
Parents: Nicholas I of Montenegro and Milena of Montenegro
House: Petrović-Njegoš