Doullens, the ancient Dulincum, was seat of a viscountship and an important stronghold in the middle ages.
From about 81 9 to 1082 Carcassonne formed a separate countship, and from the latter date till 1247 a viscountship. Towards the end of the 11th century the viscounts of Carcassonne assumed the style of viscounts of Beziers, which town and its lords they had dominated since the fall of the Carolingian empire.
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