. . . "Stallion" . "The Tetrarch (1911\u20131935) was an Irish-bred, British-trained Thoroughbred racehorse. He was undefeated in a racing career of seven starts and has been regarded as the best British-trained two-year-old of the 20th century. He did not race after 1913 and was retired to stud where he became an influential sire."@en . . . . . . . . . "The Tetrarch"@en .