|Father||William de Tourville|
Ralph de was born. It is unlikely that Ralph is the son of William who came with the conqueror, but more likely a grandson or great grandson. He was living in the time of Henry I. [1100-1135]. He was in possession of the manor of Normanton.
- [S939] John Ordish Hulme, History of Thurlaston, Leicestershire including Normanton Turville, New Hall Park, and Bassett House, page 105.
- [S926] John & John Bernard Burke, A Genealogical and Heraldic Dictionary of the Landed Gentry of Great Britian & Ireland, pages 1442-1443 - Ralph De Tourville, who was living in the time of Henry I. [1100-1135]