This list of Dubious Danish Kings is half history and half legendary.

  • Halfdan the Old (Halvdan den Gamle), the legendary ancestor.
  • Chlochilaicus d. 515
  • Frode legendary
  • Ongendus (Angantyr) d. 728
  • Helge legendary 728-?
  • Siger legendary
  • Budle legendary
  • Sigfrid, mention 776- d. before 804
    • Harold, Norway?
  • Gudfred (Gudrød Vejdekonge) latest 804- d. 810
    • Eyetein fart (Eyetein Fjært) of Västergötland?
    • Halfdan (Halvdan) Norway?
  • Hemming d. 811
  • Anulo (Ole/Olav) d. 812
  • Sigfrid (Sigurd) d. 812
  • Harold 812-815 (died ca 863 by exile)
    • Reginfrid 812-814?
  • Eric the Child (Erik Barn) o. 812 - d. 854
    • Halfdan (Halvdan) o. 812-? (possibly died by exile)
  • Eric the younger (Erik den Yngre) ca. 854- mention 864, (possibly d. 873)
    • Harold (Harald Hårfager) o. 871- d. o. 933 by Norweg
  • Uffe (Ubbe) possibly o. 873 (died by exile)
  • Sigfrid "Snake eye" (Sigurd Orm i Øje) mention 873- d. 903, do coin money by East Anglia.
    • Halfdan (Halvdan) mention 873- d. 876/877
    • Godred or Canute (Harde-Knud/Gudfred/Gudrød) ca. 881- d. 895/896 of Northumbria and do coin money by East Anglia.
  • Helge ? - ?
  • Olof the Brash (Olav/Ole den Frøkne) mention o. 925
  • Gurd ?
  • Canute (Knud/Chnuba) mention 934
  • Sigerich (Sigtryg) about 935
  • Gothrum the English or Worm (Gorm den Gamle / Gorm den Engelske) mention 936- earliest d. 958
  • Harold Bluetooth (Harald Blåtand) tidligst 944- d. senest 987
  • Sweyn I Forkbeard alias Otto (Svend Tveskæg) o. 990
  • Eric the Victorious (Erik Sejrsæl) o. 991- d. o. 994
  • Sweyn I Forkbeard alias Otto (Svend Tveskæg) d. 1014
  • Harald only know from Saxo 1014-1018
  • Canute the Great alias Lambert (Knud den Store) * 1014/1018-1035