Nielsen Hayden genealogy
Descendants of Radulf I de Tosny
920 - Aft 991 (~ 76 years)Father: Hugo of Calvacamp
Radulf I de Tosny (Between 915 and 920 - Aft 1 May 991)
   └─ Radulf II de Tosny (Abt 955 Tosny, Normandy, France - Aft 1023)
   
       ├─ (Unknown son of Radulf II de Tosny) ( - 1023)
       │
       │    └─ Robert de Tosny ( - Abt 1093 bur.Belvoir Priory, Belvoir, Leicestershire, England) =>
       │     + Adelaise ( - Bef 1093 bur.Belvoir Priory, Belvoir, Leicestershire, England)
       └─ Roger I de Tosny (Between 985 and 995 -
        Between 1038 and 1043 bur.Abbey of St. Pierre de Castillon, Conches-en-Ouche, Eure, France)
        Between 1038 and 1043 bur.Abbey of St. Pierre de Castillon, Conches-en-Ouche, Eure, France)
        (Unknown first wife of Roger I de Tosny)
        :   ├─ Helbert ( - Between 1038 and 1043)
        :   └─ Helinand ( - Between 1038 and 1043)
        Godehildis (m. Bef Aug 1027)
           ├─ Robert I de Stafford ( - Abt 1088 Evesham Abbey, Evesham, Worcestershire, England) =>
           │ + (Unknown Person Not Actually Named Avice de Clare)
           ├─ Radulf III de Tosny (Abt 1030 -
           │ 24 Mar 1102 bur.Abbey of St. Pierre de Castillon, Conches-en-Ouche, Eure, France) =>
           │ 24 Mar 1102 bur.Abbey of St. Pierre de Castillon, Conches-en-Ouche, Eure, France) =>
           │ + Isabel de Montfort ( - Aft 1123 Haute-Bruyere Priory, near Rambouillet, Yvelines, Île-de-France,
           │ France)(m. Between 1068 and 1070)
           │ France)(m. Between 1068 and 1070)
           └─ Adeliza de Tosny (Between 1030 and 1035 -
            5 Oct 1066 bur.Notre-Dame de Lyre Abbey, Eure, Normandy, France) =>
            5 Oct 1066 bur.Notre-Dame de Lyre Abbey, Eure, Normandy, France) =>
            + William fitz Osbern (Between 1025 and 1030 - 20 Feb 1071 Flanders)