Lords and Counts of Harcourt

When the Viking chieftain Rollo obtained the territories via the Treaty of Saint-Clair-sur-Epte which would later make up Normandy, he distributed them as estates among his main supporters.

Jeanne (1399–1456), the daughter of John VII, had married Jean III de Rieux (1377–1431) in 1414.

He reached a settlement with the Duke of Lorraine in 1495, trading Aumale for Harcourt, and resumed the title.

Upon the death of Henri, the county of Harcourt passed to his sister Louise, who had married René, Marquis of Elbeuf, head of a cadet branch of the House of Lorraine.

Both branches descend from Philippe d'Harcourt (1353–1403), Lord of Bonnétable, son of John V of Harcourt.