Marchais, Aisne

Marchais
The monument to the dead and church of Marchais
Location of Marchais
Marchais
Marchais
Coordinates: 49°35′04″N 3°49′03″E / 49.5844°N 3.8175°E / 49.5844; 3.8175
CountryFrance
RegionHauts-de-France
DepartmentAisne
ArrondissementLaon
CantonVilleneuve-sur-Aisne
IntercommunalityChampagne Picarde
Government
  Mayor (20202026) Christophe Hanon
Area
1
15.3 km2 (5.9 sq mi)
Population
 (2022)
391
  Density26/km2 (66/sq mi)
DemonymMarchaisiens
Time zoneUTC+01:00 (CET)
  Summer (DST)UTC+02:00 (CEST)
INSEE/Postal code
02457 /02350
Elevation70–110 m (230–360 ft)
(avg. 80 m or 260 ft)
1 French Land Register data, which excludes lakes, ponds, glaciers > 1 km2 (0.386 sq mi or 247 acres) and river estuaries.

Marchais (French pronunciation: [maʁʃɛ]) 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 Chateau 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. He was accused of treason, though, and to save his life, he surrendered his castle and lands to Charles, Cardindal of Lorraine.

In 1906, Maurice Léger made a prototype helicopter flight at Marchais.