Gyorgy Klapka, a Hungarian soldier, born in Temesvar, April 7, 1820. He was educated in the school of artillery in Vienna, entered the noble life guards of the emperor, and in 1847 was appointed officer in a border regiment. In 1848 he offered his services to the new government of his country, and at the beginning of 1849 he was placed at the head of the army of the north. He gained decisive advantages over the Austrians under Schlick in the engagements of Tarczal (Jan. 22), Keresz-tur-on-the-Bodrog (23), and Tokaj (31), and commanded the right wing of the Hungarian army at Kapolna (Feb. 26, 27). He was promoted to the rank of general, and subsequently took part, under Gorgey, in the five principal battles of the April campaign (at Bicske, Izsaszeg, Waitzen, Nagy-Sarlo, and Acs), all of which ended in the defeat of the Austrians. His sortie out of the fortress of Comorn, Aug. 3, was one of the most signal deeds of the revolutionary war, and almost annihilated the Austrian army of observation. When the news from the Theiss suddenly destroyed all hope of further advantages, he retired to Comorn and surrendered on Oct. 4. Leaving Hungary, he lived for some time in Hamburg, London, Paris, and Switzerland. On the outbreak of the war against Russia he went to Constantinople, but failed to obtain an appointment.

He became a citizen of Geneva in 1855. During the wars of 1859 and 1866 he entered into communication with the enemies of Austria, organizing Hungarian legions against her, and after the battle of Sadowa even entered Hungary; but the attempts failed. After the reconstruction in 1867, he returned to Hungary, and took part in the reorganization of the military forces of the country. In 1873 he was employed by the Porte in reorganizing the Turkish army, and in January, 1874, he accompanied Duke William of Wurtemberg in a journey to Egypt. He is the author of "Memoirs of the War of Independence in Hungary" (Leipsic, 1850; English translation, 2 vols., London, 1850); a history of "The National War in Hungary and Transylvania" (2 vols., Leipsic, 1851); and of "The War in the East" (Geneva, 1855; English ed., London, 1855).