In medieval times, a châtelet () was a little castle or fortress, wherein the ''

Châtelain Châtelain (from la, castellanus, derived from ''castellum''; pertaining to a castle, fortress. Middle English: '' castellan'' from Anglo-Norman: ''castellain'' and Old French: ''castelain'') was originally the French title for the keeper of a c ...

'' (female ''chatelaine'') or governor lodged. Châtelet or Chatelet may refer to:

Places

Belgium

Châtelet, Belgium Châtelet (; wa, Tcheslet) is a city and municipality of Wallonia located in the province of Hainaut, Belgium. It lies on the river Sambre. As of January 1, 2018, Châtelet had a total population of 36,101. The total area of the municipality is ...

, a municipality in the province of Hainaut

France

Grand Châtelet The Grand Châtelet was a stronghold in Ancien Régime Paris, on the right bank of the Seine, on the site of what is now the Place du Châtelet; it contained a court and police headquarters and a number of prisons. The original building on the s ...

, a former stronghold with courts, police, and prisons on the site of the Place du Châtelet *

Place du Châtelet The Place du Châtelet () is a public square in Paris, on the right bank of the river Seine, on the borderline between the 1st and 4th arrondissements. It lies at the north end of the Pont au Change, a bridge that connects the Île de la Cité, ...

, a public square in Paris, on the right bank of the Seine on the border of the 1st and 4th arrondissements *

Théâtre du Châtelet The Théâtre du Châtelet () is a theatre and opera house, located in the place du Châtelet in the 1st arrondissement of Paris, France. One of two theatres (the other being the Théâtre de la Ville) built on the site of a ''châtelet'', a s ...

, a theatre in Paris, on the Place du Châtelet *

Châtelet (Paris Métro) Châtelet () is a station of the Paris Métro and Île-de-France's RER commuter rail service, located in the centre of medieval Paris, on the border between the 1st and 4th arrondissements. It serves RER A, RER B and RER D, as well as Line 1, ...

, a Metro station in Paris, located near the Place du Châtelet *

Châtelet - Les Halles (Paris RER) In medieval times, a châtelet () was a little castle or fortress, wherein the ''Châtelain'' (female ''chatelaine'') or governor lodged. Châtelet or Chatelet may refer to: Places Belgium * Châtelet, Belgium, a municipality in the province ...

, the central commuter train station in Paris, attached to both the Châtelet and Les Halles metro stations *

Le Châtelet-sur-Meuse Le Châtelet-sur-Meuse (, literally ''Le Châtelet on Meuse'') is a commune in the Haute-Marne department in north-eastern France. It contains the source of the River Meuse, which is very close the commune's village of Pouilly-en-Bassigny. Re ...

, a commune in Haute-Marne that is near the source of the Meuse

Switzerland

Le Châtelet (mountain) Le Châtelet (2,537 m) is a mountain of the Swiss Mont Blanc massif, overlooking Orsières in the canton of Valais Valais ( , , ; frp, Valês; german: Wallis ), more formally the Canton of Valais,; german: Kanton Wallis; in other official S ...

, in Switzerland

Other uses

Châtelet surface In algebraic geometry, a Châtelet surface is a rational surface studied by given by an equation :y^2-az^2=P(x), \, where ''P'' has degree 3 or 4. They are conic bundle In algebraic geometry, a conic bundle is an algebraic variety that app ...

, a surface in algebraic geometry

People with the surname

Albert Châtelet Albert Châtelet (24 October 1883 – 30 June 1960) was a French politician and mathematician. Biography Châtelet was a student at the École normale supérieure (Paris) from 1905 to 1908, succeeding to the Agrégation (a highly selective compe ...

(1883–1960), French mathematician and politician *

Émilie du Châtelet Gabrielle Émilie Le Tonnelier de Breteuil, Marquise du Châtelet (; 17 December 1706 – 10 September 1749) was a French natural philosopher and mathematician from the early 1730s until her death due to complications during childbirth in 1749. ...

(1706−1749), French mathematician, physicist, and author *

François Châtelet François Châtelet (27 April 1925 – 26 December 1985) was a historian of philosophy, political philosophy and professor in the socratic tradition. He was the husband of philosopher Noëlle Châtelet, the sister of Lionel Jospin. Biog ...

(1925−1985), French historian of political philosophy * François Châtelet (mathematician) (1912–1987), French mathematician *

Gilles Châtelet Gilles Châtelet (2 February 1944 – 11 June 1999) was a French philosopher and mathematician.Johnson, Douglas (June 25, 1999)"Obituary: Gilles Chatelet" ''The Independent (London), The Independent''. Biography Châtelet began studying at the É ...