Hugh IV, Count of Rethel (1244–1285) was a son of Manasses V[1] and his wife, Isabelle of Écry.
In 1272, he succeeded his father as Count of Rethel.
Hugues IV was married to: With Isabelle, he had a daughter, Jeanne, Countess of Rethel, who succeeded him.
[2] In 1290, Jeanne married Louis I, Count of Flanders.
[2]