Château de Scey, Medieval castle ruins in Chassagne-Saint-Denis and Cléron, France

The Château de Scey is a ruined castle on a rocky spur between the Loue valley and the Valbois ravine, at 478–496 m altitude. Its surviving Saint-Denis Tower, built from 1166, shows two wall sections of light grey and beige masonry with small openings and a gable-shaped top. Lower curtain walls and foundations extend along the slope.

The castle began its construction in the 11th century, with the Saint-Denis Tower built by Pierre de Scey in 1166. King Louis XIV ordered the fortress destroyed in 1674 as part of his military strategy.

The castle's name comes from the de Scey family, lords of the county of Burgundy; the tower is named after the Saint-Denis chapel added against it in the 16th century. The sommellerie stored local wines from the Loue valley such as Arbois, Savagnin and Gamay. Since 1995, work-insertion associations have consolidated the ruins.

The site is best explored on foot, as the terrain is steep and uneven, requiring sturdy footwear. Restoration efforts since 1995 have improved stability and made different sections of the ruin accessible to visitors.

The Saint-Denis Tower, built from 1166, survives only as two wall sections, yet these show the medieval Comtois building style. The castle's wine store, the sommellerie, held wines from the Loue valley such as Arbois, Savagnin and Gamay.