Mortefontaine, Oise

Mortefontaine
Town hall
Location of Mortefontaine
Mortefontaine
Mortefontaine
Coordinates: 49°06′47″N 2°36′01″E / 49.1131°N 2.6003°E / 49.1131; 2.6003
CountryFrance
RegionHauts-de-France
DepartmentOise
ArrondissementSenlis
CantonSenlis
IntercommunalityCC de l'Aire Cantilienne
Government
  Mayor (20202026) Jacques Fabre
Area
1
15.29 km2 (5.90 sq mi)
Population
 (2022)
859
  Density56/km2 (150/sq mi)
DemonymMortifontain
Time zoneUTC+01:00 (CET)
  Summer (DST)UTC+02:00 (CEST)
INSEE/Postal code
60432 /60128
Elevation60–203 m (197–666 ft)
(avg. 93 m or 305 ft)
Websitewww.mortefontaine60.fr
1 French Land Register data, which excludes lakes, ponds, glaciers > 1 km2 (0.386 sq mi or 247 acres) and river estuaries.

Mortefontaine (French pronunciation: [mɔʁt(ə)fɔ̃tɛn]) is a commune in the Oise department in Northern France.

The 17th-century Château de Mortefontaine was bought by Joseph Bonaparte, elder brother of Napoléon Bonaparte, in 1798. The Convention of 1800 (also known as the Treaty of Mortefontaine), a friendship treaty between France and the United States, was signed in the castle. The preliminaries of the 1802 Peace of Amiens were also negotiated there.