| 
Event table notes
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| Event data |  | 
   | Place: Vienna |  
   | Start date: Apr. 1846 |  
   | End date:   Apr. 1846 |  |  |  
   | Notes: |  
   | Feenstra Kuiper and Di Felice give the result as +5-0=2 for von der Lasa; Spinrad also gives +5-0=2 from another source, but gives +0-3=2 from the Teplitz-Schönau tournament book; Giffen gives +5-2. Hooper and Whyld only say that von der Lasa won most of the 7 games played. Staunton quotes a letter from von der Lasa in both the Chess Player's Chronicle (v.7, 1846, pp.215-216) and the Illustrated London News (13 June 1846, p.386), saying that there were 7 games, the first 2 drawn and 'The result of the remaining five was to my advantage'. |  |  |  |  
   | References |  | 
| Books |  
   | Di Felice, Chess Results, 1747-1900, page 6 |  
   | Feenstra Kuiper, 100 Jahre Schachzweikämpfe, page 14 |  
   | Goldman, Carl Schlechter!, page 69 |  
   | Harding, Eminent Victorian Chess Players, page 75 |  
   | Hooper and Whyld, Oxford Companion (1st ed.), page 177 |  | Periodicals |  
   | [CPC], vol. 7, no. 7, July 1846, page 215 |  
   | [CPC], vol. 7, no. 12, Dec. 1846, page 405 |  
   | [CPC], vol. 3, no. 11, Nov. 1855, page 361 |  
   | [FLIN], 5 Jan. 1856 |  
   | [ILN], vol. 8, no. 215, 13 June 1846, page 386 |  
   | [SZ], vol. 1, no. 2, Aug. 1846, page 40 |  
   | [SZ], vol. 13, no. 2, Feb. 1858, page 38 |  | Web |  
   | Alberti, Marco A.  [Johann Jacob Löwenthal] |  
   | Giffen, Glen.  [Events Timeline] |  
   | Spinrad, Jeremy P.  [Baron von Heydebrand und der Lasa], page 3 |  
   | Spinrad, Jeremy P.  [Collected results, 1836-1863] |  |  |