Bred by Mr Carver, he was sold to Dennis O\'Kelly, the owner of his sire Eclipse (ch c 1764 Marske), as a yearling. He was said to stand sixteen hands, have excellent bone and sinews, and be well shaped and free from blemish. He was reported to pass along to his offspring his good size and action.
Lamed in his first trial and fired at the age of three, he nevertheless went on to win eight races. On his retirement from the turf, King Fergus was purchased by Mr John Croke and his stud career commenced at the Curragh in Ireland. He was put back into training after the season of 1784, and placed second in the Lord Lieutenant\'s Plate, which was his only race there. By this time his Irish youngsters were coming along, and subsequent to their successes, King Fergus was returned to England in 1785, where he stood at Shipton, near York, under the care of John Hutchinson, initially for a fee of 5 guineas which rose quickly to 10 guineas.
In the stud he got some excellent runners, including three St Leger winners, Beningbrough (b c 1791), Hambletonian (b c 1792) and Young Traveller (ch c 1788), of whom the first two were also excellent stallions. In Ireland the distinguished Honest Tom (ch c 1785), won twenty-four races, five of which were King\'s Plates. Honest Tom, raced by Colonel Lumm, was said to have beaten the best in Ireland over any course.
King Fergus was Champion Sire in 1797 and died at Boroughbridge, Yorkshire, in 1801. More => http://www.bloodlines.net/TB/Bios/KingFergus.htm