The story
The stud was established in 1907 by wealthy American sportsman William Kissam Vanderbilt. He sold the property to another American horseman, A. Kingsley Macomber, whose colt War Cloud won the 1918 Preakness Stakes. Macomber had other wins, including the 1923 Prix de l'Arc de Triomphe.
Prior to and during the German occupation of France in World War II the property was left abandoned.
From Wikipedia’s article on Haras du Quesnay, shared under CC BY-SA 4.0.4