During the German occupation of France during World War II, all breeders' premiums won by Meautry-bred horses were confiscated by the Nazi officials in charge of French racing. As well, the Nazis seized some of the best racehorses in the country and shipped more than six hundred thoroughbreds out of the country. Some went to Hungary, but most were shipped to Germany for racing or for breeding at the Heeresgestüt Altefeld, which belonged to the German Wehrmacht. Among them was the champion Brantôme who would be recovered in 1945 at the end of the War.
Other Rothschild-owned horses won the Grand Prix de Paris in 1909 and 1914 and claimed victory in a number of other important Stakes races including two more wins at the Prix de l'Arc de Triomphe in 1938 and 1963.