Ralph I, Lord of Coucy

Ralph of Coucy, (c. 1134 – 1191) Lord of Coucy, Lord of Marle, La Fère, Crécy, Vervins, Pinon, Landouzy, and Fontaine. He was the son of Enguerrand II, Lord of Coucy and Agnes de Beaugency.

Family Ralph married , daughter of Baldwin IV, Count of Hainaut. They had: Ada, married Dirk van Beveren Yolande, married Robert II of Dreux

Ralph married the second time to , daughter of Robert I, Count of Dreux and Hawise, countess of Perche. They had: Enguerrand III, Lord of Coucy (d. 1243) Thomas, lord of Vervines (d. 1252/3) (d. 1214) Robert, lord of Pinon

By his later marriage, Ralph became cousin to Philip II of France. He attended the King of France in 1181 during the war against Philip I, Count of Flanders. He left for the Holy Land, where he died in the siege of Acre in November 1191.