Marchais () is a commune in the Aisne department in Hauts-de-France in northern France. It takes its name from the Latin 'mercasius' or marshland.
The 16th century Château de Marchais is a private residence of the Princes of Monaco, since being acquired in 1854 by Charles III. It was built in the 16th century by Nicolas de Longueval, Comte de Bossut.Hare, Augustus John Cuthbert. North-eastern France. United Kingdom: G. Allen, 1890.Bulletin de la Société Académique de Laon. France: Éd. Fleury et Ad. Chevergny, 1863. He was accused of treason, though, and to save his life, he surrendered his castle and lands to Charles, Cardinal of Lorraine.
In 1906, Maurice Léger made a prototype helicopter flight at Marchais.
Population
See also Communes of the Aisne department
References