Château Peymouton is part of the estate of Château Laroque, a historic Grand Cru Classé of Saint-Émilion located just 3.5 km east of the medieval village.

Château Laroque, one of the largest estates of the appellation, dates back to the 12th century. Thanks to its strategic position atop a limestone plateau overlooking the Dordogne River valley, it acted as a key defensive stronghold to the nearby village. The vineyard itself was planted in the 18th century. The Beaumartin family acquired the property in 1935, and, in the 1960s, began modernizing the vineyard and winemaking facilities.

In 1996, Château Laroque was granted Grand Cru Classé status for 27 hectares of its vineyard while the remaining 31 hectares gave birth to a new wine: Château Peymouton, Saint-Émilion Grand Cru.