The county of the Vexin was a medieval French county that was later partitioned between the Vexin Français (French Vexin) and the Vexin Normand (Norman Vexin). The count of the Vexin was the ruler of said county.
List of counts
Carolingian counts
Nibelungs
- 864-after 879 Nibelung IV
- Theodoric I, his son
- 886 Adelram III and Theodoric II, defenders of Pontoise, nephews of Theodoric I
House of Valois-Vexin-Amiens
- c. 895 – 919 Ermenfroi, also count of Amiens and Valois
- 915–926 Ralph I d'Ostrevent, also count of Amiens and Valois, son-in-law of preceding
- 926–943 Ralph II, also count of Amiens and Valois, son of preceding
- 943 – after 992 Walter I, also count of Amiens and Valois, apparently brother of preceding
- c. 998 – after 1017 Walter II the White, also count of Amiens and Valois, son of preceding
- c. 1024 – 1035 Drogo, also count of Amiens, son of preceding
- 1035–1063 Walter III, also count of Amiens, Valois and Maine, son of preceding
- 1063–1074 Ralph IV, also count of Valois and Amiens, son of Ralph III of Valois and grandson of Walter II
- 1074–1077 Simon, also count of Valois and Amiens, he became a monk and his properties were dispersed, Vexin being partitioned between the Duke of Normandy and the King of France
House of Bourbon
