Château de Motteux, Renaissance castle in Marolles-sur-Seine, France.

Château de Motteux is a large stone building with a pale beige facade and a dark slate roof, its front divided into a central block and two side wings. The central block rises into a steep, square pavilion roof topped by a thin vertical rod, while the wings have steep hipped roofs. Tall brick chimneys with stone trim rise at the left, right and centre, and two rows of tall rectangular windows with pale shutters and stone surrounds flank a central arched ground-floor door.

The château was built around 1569 by the Foissy family, with Jean de Brosse, father of Salomon de Brosse, named as architect. A 1593 description records three slate-covered towers, a moat-ringed courtyard, a walled lower court, a barn and a dovecote. In 1661 Jean de La Barde, marquis de Marolles, bought it; it later passed to the Brion and then the Sinéty families.

The name Motteux belonged to a sub-fief of the Marolles-sur-Seine lordship, bought up by the lords around 1600. The property stayed in the hands of linked families: after Jean de La Barde, Marquis of Marolles, it passed to the Brion family, then to the Sinéty, descendants of both. A local caterer later restored part of the outbuildings for events.

The château is a private property and not open to the public, so visits are limited to viewing the facade and roofs from the road outside. The outbuildings, restored after the 1999 storm, are used for private and professional events; access is only by arrangement with the owners.

In the second half of the 19th century, sections of outbuildings were transformed into stables on the north side and a new residence on the south side. These changes show how the property's use shifted to meet the needs of its owners.