The Fondation Custodia is an art museum in the 7th arrondissement of Paris, focusing on European Old Master works, including works by Dutch, Flemish, Italian and French artists. The museum was founded in 1947 by the collector and art historian Frits Lugt to house his collection of drawings, prints and paintings. Located at 121 rue de Lille, it occupies the Hôtel Turgot, an 18th-century mansion.