Brantome was sired by Irish stallion Blandford (1919–1935) out of the mare Vitamine.
Entered in the Ascot Gold Cup in England, eleven days before the race Brantôme got loose from the stables and was not caught until after he had galloped into downtown Chantilly.
Despite this, his owner still sent him to compete in the Ascot Gold Cup where he finished out of the money.
After winning twelve of the fourteen races he competed in, Brantôme was retired to stand at stud.
Some went to Hungary, but most were shipped to Germany for racing or for breeding at the German National Stud.