The Petit Trianon was built on the site of a botanical garden developed about a decade earlier by Louis XV, within the grounds of the Grand Trianon, Louis XIV's retreat from the Palace of Versailles to the southeast.[1] It was designed by Ange-Jacques Gabriel by order of Louis XV for his long-term mistress, Madame de Pompadour, and was constructed between 1762 and 1768.[2] Madame de Pompadour died four years before its completion, and the Petit Trianon was subsequently occupied by her successor, Madame du Barry.