Château de Grammont, French fortified castle

The Château de Grammont, also called Château de Lugny, is a former fortified castle rebuilt in 1771 to designs by architect Edme Verniquet. It has a central block with two short wings returning at right angles to the north, seven irregular facade planes, and a square stair tower set into the east wing's courtyard facade, whose ground-floor door bears a carved accolade lintel with the arms of the Lévis and Damas de Cousan families. Medieval walls over 3 metres thick, arrow slits and a round tower survive in the cellars.

The castle was originally built as a medieval fortress and later redesigned in the 18th century by architect Edme Verniquet into a larger, more comfortable country estate. Over the centuries, it passed through the hands of various noble families, including the Damas family in the 13th and 14th centuries, and eventually the Grammont family, who still own it today.

The castle gave its alternate name, Grammont, to the family of Théodule de Grammont, who acquired it in 1890 through his marriage to Marguerite de Croÿ; their descendants still own it. The entrance door's accolade lintel carries the carved arms of the Lévis and Damas de Cousan families.

The castle is privately owned and does not typically offer regular public tours, though the grounds open for special occasions. Visitors can admire the exterior and explore the surrounding parkland, where mature trees provide shade and pathways lead to quiet spots.

The medieval fortress was not entirely erased in 1771: in the cellars, walls more than three metres thick, arrow slits and a round tower from the old castle can still be seen. The square stair tower in the courtyard facade carries a door with a carved accolade lintel bearing the arms of the Lévis and Damas de Cousan families.