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|Full name||Johann Jacob Löwenthal|
15 July 1810|
|Died||24 July 1876
Löwenthal was born in Budapest, the son of a Jewish merchant. He was educated at the gymnasium of his native city. In 1846, he won a match against Carl Hamppe in Vienna (+5 −4 =0). He received a civil appointment under the administration of Lajos Kossuth in 1848. On the downfall of the latter, Löwenthal was expelled from Hungary, and he emigrated to America (1849). In 1851 he went to London, and thenceforward resided permanently in England. At the Manchester tourney of 1857 Löwenthal defeated Adolf Anderssen for first place.
In his visit to New Orleans, Löwenthal played Paul Morphy on two separate occasions, losing a total of three games straight. He was one of the first masters to play a match against Morphy after the latter's arrival in London in 1858. Morphy won with a score of nine wins, three losses and two draws. "...I am convinced that I was vanquished by superior strength," Löwenthal said about the match, as reported by the Englishman Frederick Edge. No doubt aware that chess was Löwenthal's only source of livelihood, and conscious to not be considered a professional player himself, Morphy after winning the match stakes of £100, presented Löwenthal with a gift of furniture valued at £120 for his new house.
Just days after being defeated by Morphy, Löwenthal had his greatest success by winning the British Chess Association Congress knockout tournament in Birmingham, England on 27 August 1858. His prize was £63.
In 1860 Löwenthal took advantage of Morphy's extreme popularity to create a collection of the American master's games titled Morphy's Games of Chess. According to Morphy's biographer David Lawson, Morphy was friendly to Löwenthal and therefore agreed to sign his name to material in the book, that was purported to be written by Morphy but in fact was not.
For a time, Löwenthal served as club secretary of the St. George's Chess Club in London. He taught chess, and invented the first demonstration board. He helped organize an international tournament in 1862, and then published a tournament book.
Löwenthal was for some time chess editor of The Illustrated News of the World and of The Era. He was editor also of The Chess Players' Magazine (1863–67). In 1860 he published Morphy's Games of Chess, with Analytical and Critical Notes.
Löwenthal lived into his sixties. When he became ill in 1874 and could no longer financially support himself, a collection was taken up for him. Lord Randolph Churchill and many others contributed to the charity fund. Under the influence of W. G. Ward, with whom he played chess, Löwenthal became a Roman Catholic. He died on 24 July 1876 at St. Leonards-on-Sea, near Hastings at the age of sixty-six.
- Gaige, Jeremy (1987), Chess Personalia, A Biobibliography, McFarland, pp. 256–7, ISBN 0-7864-2353-6
- Jacobs, Joseph; Porter, A. (1901–1906), "Löwenthal, Johann Jacob", in Singer, Isidore, Jewish Encyclopedia, 8, pp. 195–6
- British Chess Magazine, 1926, pages 345–8, and 1976, pages 308–14
- Seccombe, Thomas (1893). "Loewenthal, Johann Jacob". In Lee, Sidney. Dictionary of National Biography. 34. London: Smith, Elder & Co.