The County of Amiens (also: Amiénois) was a feudal state centred on the city of Amiens, northern France, that existed from the 9th century until 1077 when the last count became a monk and the county reverted to the French crown. In 1185 the county was united with the French crown under King Philip II of France.

List of counts of Amiens

In 1077 Simon became a monk and his possessions were distributed. Valois went to his brother-in-law Herbert IV, Count of Vermandois, Amiens reverted to the French king Philip I while Vexin was divided between William, Duke of Normandy, and the king of France. Bar-sur-Aube and Vitry were occupied by Theobald, Count of Blois.

House of Boves

Capetian House of Vermandois