The Tricastin is an area around Saint-Paul-Trois-Châteaux

Saint-Paul-Trois-Châteaux

Saint-Paul-Trois-Châteaux is a commune in the Drôme department in southeastern France.-Population:-See also:*Saint-Paul-Trois-Châteaux Cathedral*Tricastin*Communes of the Drôme department-External links:*...

 in Provence

Provence

Provence ; Provençal: Provença in classical norm or Prouvènço in Mistralian norm) is a region of south eastern France on the Mediterranean adjacent to Italy. It is part of the administrative région of Provence-Alpes-Côte d'Azur...

, France

France

The French Republic , The French Republic , The French Republic , (commonly known as France , is a unitary semi-presidential republic in Western Europe with several overseas territories and islands located on other continents and in the Indian, Pacific, and Atlantic oceans. Metropolitan France...

. The name derives from the Gaul

Gaul

Gaul was a region of Western Europe during the Iron Age and Roman era, encompassing present day France, Luxembourg and Belgium, most of Switzerland, the western part of Northern Italy, as well as the parts of the Netherlands and Germany on the left bank of the Rhine. The Gauls were the speakers of...

ish tribe Tricastini, which was part of the confederation of the Cavares

Cavares

The Cavares were a Gallic tribe, or a federation of tribes, located in the lower Rhone valley. Their strongholds were Avignon , Orange and Cavaillon...

. The capital of the region, Saint-Paul was named Noviomagus

Noviomagus

Noviomagus is a superficially Latinized Celtic placename containing the Celtic words noviios "new" and magos "field", "plain", then "market" '...

 before becoming Augusta Tricastinorum under Augustus

Augustus

Augustus ;23 September 63 BC – 19 August AD 14) is considered the first emperor of the Roman Empire, which he ruled alone from 27 BC until his death in 14 AD.The dates of his rule are contemporary dates; Augustus lived under two calendars, the Roman Republican until 45 BC, and the Julian...

's reign, and later Colonia Flavia Tricastinorum.

During Middle Ages, a confusion between Tricastini and Tria Castra (Three Castles) is responsible for the modern name of Trois Châteaux.

Miscellaneous

The wine Coteaux du Tricastin AOC

Coteaux du Tricastin AOC

Coteaux du Tricastin AOC is the northernmost wine-growing AOC in the southern area of the Rhône wine region of France. The wines are produced in 21 communes in the department of Drôme on the east bank of the Rhône River in a triangle bounded by Saint-Paul-Trois-Châteaux, Montélimar, and Grignan;...

 is produced in the area.

Tricastin is also the name of a pressurized water reactor

Pressurized water reactor

Pressurized water reactors constitute a large majority of all western nuclear power plants and are one of three types of light water reactor , the other types being boiling water reactors and supercritical water reactors...

 nuclear plant, Tricastin Nuclear Power Center

Tricastin Nuclear Power Center

The Tricastin Nuclear Power Plant is a collection of sites run by Areva and EDF located in 4 different communes Saint-Paul-Trois-Châteaux and Pierrelatte in Drôme, Bollène and Lapalud in Vaucluse, and four departments on right bank of the Channel of Donzère-Mondragon between Valence The Tricastin...

.