Dordogne ( , or ; ; ) is a large rural department in Southwestern France, with its prefecture in Périgueux. Located in the Nouvelle-Aquitaine region roughly half-way between the Loire Valley and the Pyrenees, it is named after the river Dordogne, which runs through it. It corresponds roughly to the ancient county of Périgord. In January 2019, Dordogne had a population of 413,223. History The county of Périgord dates back to when the area was inhabited by the Gauls. It was originally home to four tribes. The name for "four tribes" in the Gaulish language was "Petrocore". The area eventually became known as the county of Le Périgord and its inhabitants became known as the Périgordins (or Périgourdins). There are four Périgords in the Dordogne. The "Périgord Vert" (Green Périgord), with its main town of Nontron, consists of verdant valleys in a region crossed by many rivers and streams;. The "Périgord Blanc" (White Périgord), situated around the department's capital of Périgueux, is a region of limestone plateaux, wide valleys, and meadows. The "Périgord Pourpre" (Purple Périgord) with its capital of Bergerac, is a wine region. The "Périgord Noir" (Black Périgord) surrounding the administrative center of Sarlat, overlooks the valleys of the Vézère and the Dordogne, where the woods of oak and pine give it its name. The Petrocores took part in the resistance against Rome. Concentrated in a few major sites are the vestiges of the Gallo-Roman period-–the gigantic ruined tower and arenas in Périgueux (formerly Vesone), the Périgord museum's archaeological collections, villa remains in Montcaret, and the Roman tower of La Rigale Castle in Villetoureix. The earliest cluzeaux (artificial caves either above or below ground) can be found throughout the Dordogne. These subterranean refuges and lookout huts were large enough to shelter entire local populations. According to Julius Caesar, the Gauls took refuge in these caves during the resistance. After Guienne province was transferred to the English Crown under the Plantagenets following the remarriage of Eleanor of Aquitaine in 1152, Périgord passed by right to English suzerainty. Being situated at the boundaries of influence of the monarchies of France and England, it oscillated between the two dynasties for more than three hundred years of struggle until the end of the Hundred Years' War in 1453. The county had been torn apart and, as a consequence, that modeled its physiognomy. During the calmer periods of the late 15th and early