Columbia subject headings:
Harvard subject headings:
Montenegro--Kings and rulers--Genealogy.
Nikola I, King of Montenegro, 1841-1921--Family.
Petrović-Njegoš, House of.
Princeton subject headings:
Montenegro--Kings and rulers--Genealogy.
Nikola I, King of Montenegro, 1841-1921--Family.
Petrović-Njegos̆, House of.