Old Herzegovina

[1] In modern Montenegro, the region includes the municipal areas of Herceg Novi, Nikšić, Pljevlja, Plužine, Šavnik and Žabljak.

In modern Bosnia and Herzegovina, the region includes the municipal areas of Čajniče, Foča, Kalinovik and Rudo.

In modern Serbia, the region includes the municipal areas of Priboj and Prijepolje.

Initially it was part of the medieval Duchy of St. Sava (Serbo-Croatian: Херцеговина Светог Саве, Hercegegovina Svetog Save), established by duke (German: herzog, Serbo-Croatian: herceg, херцег) Stefan Vukčić Kosača within the Kingdom of Bosnia.

In the same time, eastern portion of historical Herzegovina was annexed to the Principality of Montenegro (1878), while some sections remained under Ottoman rule (Sanjak of Pljevlja) until 1912, when they were divided between Montenegro and Serbia.

Historical Herzegovina within borders of modern states, including the Old Herzegovina , in Montenegro (red) and Serbia (yellow)
Sanjak of Herzegovina (1600), including eastern regions, known today as the Old Herzegovina
Old Herzegovina (section in modern Montenegro)