Martinovic the surname of a Montenegrin aristocratic dynasty, the Martinovitch-Orlovitch, named after its dynastic founder, Martin Orlović.

The clan Orlović, by the number of homes and by their merits in the Serb liberation takes the first place in the old Montengro. Their past can be followed from the battle of Kosovo and it represents one bright thread through a very dark history of Montengro in the years after 1482

Voivode Bijela, who is also known as "Rade", was the grandson of Martin Orlović and is said to have been the lord of the fortress of Moštanica in Župa Nikšićka.
Martin's grandson, Rade In 1482, after courageously defending the fortress against Turkish invasion, the Turks captured the fortress and captured Rade.

Orlović family is now the oldest living Serbian noble house dating from Vuk Orle (13 century)

https://en.wikipedia.org/wiki/Orlović_clan