It has been long known that the name “Syrmia” in the Middle Ages meant not only the area between the rivers Sava and Danube, but also the territory on the right bank of the Sava, today’s Mačva, which was called in the sources “Further Syrmia” (Sirmia Ulterior). In this article we analyze the data concerning the history of Syrmia in the 10th-13th centuries in order to determine when and in what circumstances the name of Syrmia came to denote the right bank of the Sava. Projects of the Serbian Ministry of Education, Science and Technological Development, Grant no. 177029: Srednjovekovne srpske zemlje (13-15. vek): politički, privredni, društveni i pravni procesi and Grant no. 177032: Tradicija, inovacija i identitet u vizantijskom svetu]
Serbia, Hungary, Угарска, Срем, Србија, Mačva, Byzantium, Византија, Syrmia, “Margaret’s dowry”, „Маргаритин мираз“, Мачва
