Šabac
Šabac stands on the southern bank of the Sava, at the edge of the fertile Mačva plain. A medieval settlement called Zaslon stood here before the Ottoman conquest. In 1470 the Ottomans built a fortress they called Böğürdelen; King Matthias Corvinus of Hungary captured it six years later, and it remained Hungarian until 1521. The town changed hands repeatedly in the Habsburg–Ottoman wars. Returned to Ottoman rule in 1739, it grew as a market on the imperial frontier. During the First Serbian Uprising, Karađorđe's forces defeated an Ottoman army near Mišar in 1806. After the Second Uprising, Šabac became part of the autonomous Serbian principality, where Jevrem Obrenović established his residence and encouraged new institutions.