KARLOWITZ, or CARLOWITZ (Hungarian, Karloeza; Croatian, Karlovci)  , a city of Croatia-Slavonia, in the county of Syrmia; on the right bank of the Danube, and on the railway from Peterwardein, 6 m . N.W. to Belgrade . Pop . (1900), 5643 . Karlowitz is the seat of an Orthodox metropolitan, and has several churches and schools, and a hospital . The fruit-farms and vineyards of the Fruska Gora, a range of hills to the south; yield excellent plum brandy and red wine . An obelisk at Slankamen, 13 M . E. by S., commemorates the defeat of the Turks by Louis of Baden, in 1691 . The treaty of Karlowitz, between Austria, Turkey, Poland and Venice, was concluded in 1699; in 1848-1849 the city was the headquarters of Servian opposition to Hungary . It was included, until 1881, in the Military Frontier .