Alec Head trained for the family in Europe until his retirement in 1984 but for a number of years continued to act as their bloodstock advisor.
In the United States, the Wertheimer brothers won the 1993 Breeders' Cup Turf and earned American Horse of the Year honors with Kotashaan.
An interest in racing goes back two generations in a family which has been responsible for the development of a number of top stallions, including Lyphard, Riverman and Green Dancer ... Alain and Gerard's grandfather, Pierre, was a bastion of the European turf, winning English classics such as the 1956 Epsom Derby.
His death in 1965 saw the famous blue and white silks passed on to his widow, who was France's leading owner in 1972, and when she died in 1974, on again to Jacques ... Father Jacques Wertheimer was champion owner in his first full season, sweeping the 1975 French 1,000 Guineas, 2,000 Guineas and Prix du Jockey-Club with Ivanjica, Green Dancer and Val de L’Orne.
Ivanjica went on to win the 1976 Prix de L’Arc de Triomphe, an event which fell to Wertheimer again in 1981, courtesy of another filly, Gold River, who had won the Prix Royal Oak (French St Leger) the previous year Selected Group One race wins: