
Colonized by the Romans in 118 BC., Provence was divided into cities. For the Baronnies, Vaison and Luc-en-Diois were the two capitals of the Voconces city which dominated the region. Within these, there were divisions called "pagus" (lands). This latin term lasted for a long time and, in 988, a donation charter to the abbey of Cluny of Saint-André de Rosans, evoked the "Pagus Rosanensis". Some names of places were already mentioned, such as Rosans, Chapaïsses, Sironne or Roussieux.