"Radulfus seculari militiæ mancipatus" donated property to Sainte-Trinité de Fougères with the consent of "matris meæ Adeladis et sororis meæ Godeheldis et fratres mei Heudo…et Johelis" by undated charter. Domesday Book records land held by “Ralph de Feugeres” in Headley in Copthorne Hundred and Westcott in Wotton Hundred, Surrey, Twyford and Charnford in Mow Hundred in Buckinghamshire.
He succeeded his father as Seigneur de Fougères. "Alani comitis comitisseque Constantie" donated property to the abbey of Redon by charter dated 1089, witnessed by "Mathias comes Namnetis…Eudo vicecomes, Radulfus anglicus comes, Radulfus de Fulgeres…Budicus frater Hoelli comitis". "Radulfus Filogerensis et uxor eius Avicia" donated property to Sainte-Trinité de Fougères by undated charter which names "pater eius Maino", recording that he was "monachus sancti Martini apud Hilduini mansile…in comitatu comitis Moritonii". Henry I King of England confirmed that "Radulfus Filgeriensis" with "his wife Avitia and his sons Maino, Fransgualo, Henry and Robert" donated property to “domino Vitalis the hermit” for the monks at Sauvigny by charter dated 7 Mar 1113, subscribed by "Maino-franswalo filius eius, Henricus et Robertus similiter filii eius…". 1