Ancient Diocese of Orange century: at the Synod of Arles in 314, its bishop was represented by a priest named Faustinus. The first bishop of Arausio whose name is given in extant documents was Constantius, who took part in the Council of Aquileia, 381. From the early 5th century, the see was a suffragan of the metropolitan see of Arles. Arausio hosted two important synods, in 441 and 529. The Second Council of Orange was of importance for its condemnation of what later came to be called Semipelagianism. In 1516 Francis I of France ordered the union of the principality of Orange and the
Principality of Lucca and Piombino two years before, from the former Kingdom of Etruria (1801-1807). Henceforth the Principality of Lucca and Piombino became part of the Grand Duchy of Tuscany, and consequently a territory of the First French Empire. It did have special status, and a prefect was appointed (Antoine-Marie-Pierre de Hautmesnil). However, the territory was never named a Department of France. In 1814, the Imperial Austrian Army occupied Lucca, ending French control with the fall of Napoleon. Under the Congress of Vienna Piombino was given to the Grand Duchy of Tuscany, and Elba to the exiled Napoleon. Lucca was restored to separate state status