Valence is a commune in south-eastern France, the capital of the département of Drôme, situated on the left bank of the Rhône, 65 miles south of Lyon on the railway to Marseille. Its inhabitants are called Valentinois. Formerly the duchy of Valentinois, it was ruled by the Duke of Valentinois, a title which is still claimed by the Sovereign Prince of Monaco, though he has no actual administrative control over the area.