Château de Montreuil, Neo-Renaissance château in Nort-sur-Erdre, France

Château de Montreuil is the third château built on the Montreuil estate in Nort-sur-Erdre, a neo-Renaissance design by Nantes architect Marie-Louis Liberge, erected in the second half of the 19th century. Its rough light stone walls have smoother quoins and window surrounds, a steep dark hipped roof with tall chimneys and dormers, and a rounded slate-roofed pavilion at one corner. The north and south facades of the central block carry carved coats of arms of the du Bois de Maquillé and de Monti de Rezé families beneath a crowned count's helmet.

Montreuil was a seigneurial estate held by Jean Godelin in 1564 and bought by Jean de Cornulier in 1612; the Cornulier family of Montreuil lived there until 1756. A second château was built in the early 18th century, and a window of its outbuildings, now the farm, bears the date 1704. The present neo-Renaissance château, the third on the site, was built from 1882 for Constant Marie du Bois de Maquillé after his 1874 marriage, to plans by Nantes architect Marie-Louis Liberge.

The château's name comes from the Montreuil seigneurie held by Jean Godelin in 1564; the Cornulier family made it their residence from 1612 to 1756. In the entrance hall an arch is painted with the du Bois de Maquillé motto "Dieu avecque qui contre", and the chapel's central stained-glass rose window shows the initials A and M for Antoine du Bois de Maquillé, ringed by eight angels bearing the arms of his eight children.

The château stands northwest of Nort-sur-Erdre, roughly 30 km north of Nantes; the grounds are private, so visits depend on the owners' arrangements. The 1882 building and its J. Chevalier-designed park lie about 300 m northeast of the older farm of Montreuil, whose window dated 1704 marks the second château.

In the adjoining chapel, the central stained-glass window shows a rose with the initials A and M for Antoine du Bois de Maquillé, ringed by eight angels each bearing the arms of one of Constant Antoine's eight children. The entrance hall keeps a painted arch with the family motto "Dieu avecque qui contre".