Most people familiar with North American racing know that Gallant Fox was the only American Triple Crown winner to sire an American Triple Crown winner, getting 1935 champion Omaha. However, the South American stallion who is the subject of this week's question accomplished an even more remarkable feat. Himself the winner of the Argentine Quadruple Crown (the three races of the Argentine Triple Crown plus the Gran Premio Internacional/Gran Premio Carlos Pellegrini, Argentina's top all-aged race), he sired a similar winner who was considered an even better racer than himself. Who was he, and who was his champion son?
I'm Avalyn Hunter, an author, pedigree researcher and longtime racing fan with a particular interest in Thoroughbred mares and their contributions to the history of the breed.