In France, the Chemin des Dames (literally, the "ladies' path") is part of the D18 and runs east and west in the département of Aisne, between in the west, the Route Nationale 2, (Laon to Soissons) and in the east, the D1044 at Corbeny. It is some thirty kilometres long and runs along a ridge between the valleys of the rivers Aisne and Ailette. It acquired the name in the 18th century, as it was the route taken by the two daughters of Louis XV, Adélaïde and Victoire, who were known as Ladies of France. At the time, it was scarcely a carriage road, but it was the most direct route between Paris and the Château de Boves, near Vauclair, on the far side of the Ailette. The château belonged to Françoise de Châlus, former mistress of Louis XV, Countess of Narbonne-Lara and former lady of honour to Adélaïde, whom the two ladies visited frequently. To make the way easier, the count had the road surfaced, and it gained its new name.