While on the other hand his son (Salmon-Trout) was not only a good juvenile racing at five to seven furlongs but would maintain racing form well into his three old season, winning The Princess of Wales's Stakes (a 12-furlong race) and the St. Leger Stakes (a 14-plus-furlong race). The Tetrarch is also produced two other St. Leger Stakes winners (Polemarch and Caligula), which would indicate that the birth of Salmon-Trout was not just a fluke. Some of his progeny were great sprinters and stayed that way, while others went on to mature into very well-rounded distance champions. The abilities of The Tetrarch’s progeny ranged so wildly that it is difficult to tell whether or not he would have filled out as a three-year-old by looking at his offspring alone.