Château de la Mésangère, 17th-century castle in Saint-Pierre-du-Bosguérard, France.

Château de la Mésangère stands in Bosguérard-de-Marcouville, in the Eure department. The unfinished château was rebuilt in the early 17th century within moats; in 1740 a utility building enclosing a tower was added to the west. Its entrance is a dark grey-green wrought-iron gate of vertical bars, topped by an overthrow with two gilded rearing animals flanking a lantern.

A building mentioned in 1337 was destroyed in 1592; the château was rebuilt in the early 17th century and surrounded by moats. The du Fay family sold the estate in 1654 to the Scot family, who kept it until 1769. Around 1663 the park was laid out to a plan by Le Nôtre, and work continued until 1675.

Greek mythological statues from the 18th century are scattered throughout the gardens. These figures tell stories from ancient myths and create small moments of discovery as you walk through the property.

The estate lies in the Eure department, in the former commune of Bosguérard de Marcouville, now part of Les Monts du Roumois. The park has been a classified natural site since a decree of 19 January 1925, and the whole domain, park, statuary and built elements have been classified as a Monument historique since 5 November 2015. The wrought-iron gate seen at the entrance was moved here from the Château de Fumechon in Thibouville at the end of the 18th century.

Jean de La Fontaine stayed at La Mésangère at the invitation of Marguerite Hessein de La Sablière, whose daughter had married Guillaume Scot, seigneur de La Mésangère. During this stay he wrote two of his fables. The wrought-iron gate now at the entrance was moved here from the Château de Fumechon in Thibouville at the end of the 18th century.