+———King of Finland Fornjot (abt 160 Finland – )                                                                      |                                                                  +———Kari Fornjotsson                                                                  |                                                              +———Frosit Karasson                                                              |                                                          +———Jokull Frostasson                                                          |                                                      +———Snow Snaer (King) Jokulsson                                                      |                                                  +———Thorri (King) Snaersson                                                  |                                              +———Gorr (The Sea King) Thorrasson                                              |                                          +———Heytir Heiti Gorrsson (460 Raumsdal, Norway – )                                          |                                      +———Svidri (The Sea King) Heytsson (600 Norway – )                                      |                                  +———Halfden (The Aged) Sviedasson (700 Oppland, Norway – )                                  |                              +———Ivar of the Uplands Halfdensson (770 Oppland, Norway – )                              |                          +———Glumra Ivarsson Eystein the Noisy (800 Maer, Nord-Trondelag, Norway – )                          |   |                              |   +———Unknown Eysteinsdatter                          |                      +———Rognvald Earl of More Eysteinsson (830 Maer, Nord Trondelag, Norway – )                      |   |                              |   |   +———Ragnvald of Agder Gudrodsson                      |   |   |                      |   +———Ascrida Rodnvaldsdatter                      |       |                          |       +———Tora Sigurdsdotter                      |                  +———(Patrician of Normandy) Rollo (Rolf) Rognvaldsson (846 Maer, Nord-Trondelag, Norway – 931 Notre Dame, Rouen, Normandie)                  |   |                          |   |   +———Rolf Nefia                  |   |   |                  |   +———Ragnhild (Hilda) Rolfsdatter                  |              +———Guillaume William Longsworth (901 – )              |   |                      |   |   +———Berenger De Bayeux              |   |   |              |   +———Popei of (Dutchess) Bayeux              |          +———Sanspeur Richard I (933 – 996)          |   |                  |   |   +———Hubert Count of Senlis          |   |   |          |   +———Luitgarda Unknown          |      +———William 2nd Count of E Dutton (955 Normandy, France – )      |   |                                      |   |                           +———Knud Sigurdsson      |   |                           |      |   |                       +———Frotho De Denmark (810 – )      |   |                       |      |   |                   +———Gorm Ensk (830 – )      |   |                   |      |   |               +———Harold Parcus (850 – )      |   |               |   |          |   |               |   +———Sidu Unknown      |   |               |      |   |           +———Gorm De Gamel      |   |           |   |          |   |           |   +———Elfgifu of Wessex      |   |           |      |   |       +———Herfast De Crepon (890 – )      |   |       |   |          |   |       |   +———Thyra Jutland      |   |       |      |   |   +———Herbastus Forester of Arques De Crepon (911 France – )      |   |   |      |   +———Gunnor De Crepon      |       |          |       +———Gunhild Olafsdatter (923 Denmark – )      |  +———Robert 3rd Count of Dutton (1022 Normandy, France – 8 Apr 1089 Normandy)  |   |          |   |   +———Unknown Turchetil  |   |   |  |   +———Alice Lesceline De Harcourt (973 – 1057)  |      William 4th Count of Dutton (1040 Normandy, France – )  |      +———Beatrice De Builly