Le Petit Trianon is a mansion on the grounds of De Anza College at 21250 Stevens Creek Blvd., in Cupertino, California. Built in 1892 for Charles A. Baldwin and his wife Ellen Hobart Baldwin, the mansion was once the center of their successful wine-producing estate where the couple was known to entertain lavishly. Baldwin installed a massive stone winery; built underground cellars (today part of the De Anza College grounds) and planted vines from Bordeaux and other regions of France. Under the label Beaulieu, Baldwin's wines were sold in New York, London and Central America.