Raoul I of Brienne, Count of Eu

Raoul I of Brienne (d. 1344, Paris) was the son of John II of Brienne, Count of Eu and Jeanne, Countess of Guînes.

He succeeded his father as Count of Eu in 1302, and his mother as Count of Guînes in 1332. In 1329, he was named Constable of France, and he also held the office of Governor of Languedoc.

In 1315, he married Jeanne de Mello (d. 1351), Lady of Lormes and Château-Chinon. They had three children:

1. Raoul II of Brienne, Count of Eu and Guînes (d. 1350)
2. Jeanne (d. 1389, Sens), Lady of Château-Chinon, married first in 1342/3 Walter VI of Brienne, married second in 1357 Louis I d'Évreux, Count of Étampes (1336–1400)
3. Marie, d. young

He was killed in a tournament and was succeeded by his son Raoul.