The 17th-century Salon de la Paix at Versailles is to undergo restoration work funded by the French car maker Renault. Although the room’s polychromed marble wall panels are also in need of treatment, the project’s main goal is to recover Charles Le Brun’s allegorical ceiling painting, around 90% of which has been obscured, in part by a heavy-handed 1950s restoration. The work by Louis XIV’s favoured painter depicts France offering peace to her enemies.