Cathedral of Saint Stephen of Metz (French: Cathédrale Saint Étienne de Metz), also known as Metz Cathedral, is a historic Roman Catholic cathedral in Metz, capital of Lorraine, France. Saint-Étienne de Metz is the cathedral of the Roman Catholic Diocese of Metz and the seat of the Bishop of Metz, currently Pierre Raffin. The cathedral treasury exhibits the millennium rich collection of the Bishopric of Metz, including paraments and items used for the Eucharist. Saint-Stephen of Metz has one of the highest naves in the world. The cathedral is nicknamed the Good Lord's Lantern (French: la Lanterne du Bon Dieu), displaying the largest expanse of stained glass in the world with 6,496 m2 (69,920 sq ft). Those stained glass windows include works by Gothic and Renaissance master glass makers Hermann von Münster, Theobald of Lixheim, and Valentin Bousch and romantic Charles-Laurent Maréchal, tachist Roger Bissière, cubist Jacques Villon, and modernist Marc Chagall.