KOMÁROM (Ger., Komorn), the capital of the county of Komárom, Hungary, 65 m. W.N.W. of Budapest by rail. Pop. (1900), 16,816. It is situated at the eastern extremity of the island Csallóköz or Grosse Schütt, at the confluence of the Waag with the Danube. Just below Komárom the two arms into which the Danube separates below Pressburg, forming the Grosse Schütt island, unite again. Since 1896 the market-town of Uj-Szöny, which lies on the opposite bank of the Danube, has been incorporated with Komárom. The town is celebrated chiefly for its fortifications, which form the centre of the inland fortifications of the Austro-Hungarian monarchy. A brisk trade in cereals, timber, wine and fish is carried on. Komárom is one of the oldest towns of Hungary, having received its charter in 1265. The fortifications were begun by Matthias Corvinus, and were enlarged and strengthened during the Turkish wars (1526–64). New forts were constructed in 1663 and were greatly enlarged between 1805 and 1809. In 1543, 1594, 1598 and 1663 it was beleaguered by the Turks. It was raised to the dignity of a royal free town in 1751. During the revolutionary war of 1848–49 Komárom was a principal point of military operations, and was long unsuccessfully besieged by the Austrians, who on the 11th of July 1849 were defeated there by General Görgei, and on the 3rd of August by General Klapka. On the 27th of September the fortress capitulated to the Austrians upon honourable terms, and on the 3rd and 4th of October was evacuated by the Hungarian troops. The treasure of the Austrian national bank was removed here from Vienna in 1866, when that city was threatened by the Prussians.