Ralph IV was a northern French nobleman who amassed an extensive array of lordships lying in a crescent around the Île-de-France from the border of the Duchy of Normandy in the northwest to Champagne in the southeast.
- Occupation
- aristocrat, feudatory
- Position held
- Lay abbot
- Citizenship
- France
- Born
- 1020, 1010
- Died
- February 23, 1074, September 8, 1074
