Title: Dve srpske sultanije
Subjects: History, Foreign relations
Places: Serbia, Turkey
People: Olivera consort of Bayezid I, Sultan of the Turks (1373-1444), Mara consort of Murat II, Sultan of the Turks (1417 or 1418-1487)
Time periods: To 1456, 1456-1804, Ottoman Empire, 1288-1918