This is a list of the counts of Eu, a French county in the Middle Ages.
(Eu is in the department of Seine-Maritime, in the extreme north of Normandy.)
Raoul IV was accused of treason in 1350, and the county was confiscated.
In 1660, he sold Eu to the duchesse de Montpensier.
It then passed over to the cousins of the du Maines: The House of Bourbon-Penthièvre