Sandžak (, ) is a historical geo-political region, now divided by the border between Serbia and Montenegro. Тhe name Sandžak derives from the Sanjak of Novi Pazar, a former Ottoman administrative district. Between 1878 and 1909 the region was placed under Austro-Hungarian occupation, following which it was ceded back to the Ottoman Empire. In 1912 the region was divided between the kingdoms of Montenegro and Serbia. Montenegrins and Serbs refer to the region by its medieval name Raška. The most populous city in the region is Novi Pazar, followed by Pljevlja.