SEMENDRIA (Smederevo)  , an important commercial town and capital of the Smederevo department, Servia, on the Danube, between Belgrade and the Iron Gates . Pop . (1900) 6912 . It is believed to stand on the site of the Roman settlement Mons aurcus, and there is a tradition that its famous vineyards—supplying Budapest and Vienna with some of the finest table grapes--were planted by the Roman emperor Probus (A.D . 276-282) . In the 15th century, when the Servian prince George Brankovich became lord of Tokay, in Hungary, he planted vines from Semendria on his estates there; and from these came the famous white wine Tokay . At the eastern end of the town, close to the river, there is a picturesque triangular castle with twenty-four square towers, built by George Brankovich in 1430 on the model of the Constantinople walls . Semendria was the residence of that Servian ruler and the capital of Servia from 1430 to 1459 . It is the seat of the district prefecture and a tribunal, and has a garrison of regular troops . Besides the special export of grapes and white wine, a great part of the Servian export of pigs, and almost all the export of cereals, pass through Semendria . In 1886 the town was connected with the Belgrade-Nish railway by a branch line .