[2] Prior to the French Revolution Giscours belonged to the Saint-Simon family before it was confiscated from Claude-Anne de Rouvroy de Saint Simon, and then bought by two Americans in 1793, John Gray and Jonathan Davis of Boston.
Several owners followed, and Giscours' great era began with the purchase of the property by the banker Count de Pescatore in 1845, who in 1847 hired Pierre Skawinski to manage his estate.
Skawinski proved to be one of the great agriculturalists of Médoc in the 19th century, in 1860 the inventor of a plough which bears his name, and a pioneer in the fight against mildew, he was instrumental in making Giscours one of the most reputable third growths.
[2] In 1976, the then-owner of the château and President of the Union des Grands Crus de Bordeaux, Pierre Tari, was selected as one of 11 judges to take part in the "Judgment of Paris" wine competition.
In 1995, Château Giscours' wine growing business activities were acquired by Eric Albada Jelgersma.