King Nikola’s great-grandson, Prince Nikola Petrovic-Njegos, of the Montenegrin dynasty, approved a proposed law allowing descendants of the Petrovic-Njegos dynasty officially to use heraldic royal symbols and would give them land that belonged to the king.
The Petrovic-Njegos family ruled Montenegro for more than 200 years, until King Nikola was overthrown by the Serbian Karadjordjevic dynasty in 1918.
http://www.rferl.org/content/montenegro_bill_rehabilitate_royal_family/4747540.html