Claude Joachim Lefèvre

[2] He was a member of an ancient family seated at Chamant, near Senlis, L'Oise, and at the start of the 1850s entered on a brilliant career in business and in horse-breeding.

[5] The partnership's main trainer was Tom Jennings at Phantom House Stables, on the Fordham Road in Newmarket, who had worked in France for Lagrange.

[7] In England in 1872 Lefèvre built a house which he named Bellevue, on the Bury Road in Newmarket (headquarters of the British horseracing industry) in Suffolk, in "a picturesque Italian style" and in 1873 set a record as a racehorse owner by winning 110 races in a season.

[2] In 1883 he sold Bellevue to the Scottish aristocrat and millionaire William Stuart Stirling-Crawfurd (1819-1883), of Milton[8] in Lanarkshire, Scotland, a prominent racehorse owner who in 1850 had been elected a member of the Jockey Club,[9] the regulating body of British horseracing, whose wife was Caroline Agnes Horsley-Beresford (1818-1894), (Duchess of Montrose), a notable racehorse owner, a "wildly extravagant woman" who "strode across the racing scene".

In 1884 he made a partial dispersal of his stud, "selling youngsters, mares and horses in training for huge sums".