The Langfeðgatal (Icelandic pronunciation: [ˈlauŋkˌfɛðkaˌtʰal̥]) is a 12th-century Icelandic genealogy of Scandinavian kings.

The text of the Icelandic Langfeðgatal can be found in AM 415.[2] Jacob Langbek published the text and a translation into Latin in the first volume of Scriptores Rerum Danicarum Medii Ævi, published in 1772.[3]

Raymond Wilson Chambers suggested that the Langfeðgatal, along with Textus Roffensis, the Ættartölur and the "West Saxon Regnal List from 494 to Reign of Æthelred" were influenced by a common Anglo-Saxon archetypal genealogy that existed around 970 CE.[2] Alexander M. Bruce has discussed the Langfeðgatal in a study of Scyld and Scef comparing it with Anglo-Saxon royal genealogies. He noted a difference in the primary branch in that the first name in the genealogy is that of Noah, followed by his son Japheth. This initial line continues through various figures including Jupiter and Priam, the king of Troy to his grandson Thor. Bruce noted the differences to Anglo-Saxon genealogies such as those in the Anglian collection but suggested that the line from Thor "soon refers to names and sequences familiar to us from the Anglo-Saxon works". When this line reaches Odin, it splits into two branches, a Norwegian line of legendary progenitors leading to King Harald Fairhair and a Danish line leading to an eponymous Danish King, Horda-Knute.[2]

Judy Quinn, in a Cambridge University study edited by Margaret Clunies Ross followed Eyvind Fjeld Halvorsen's definition of ‘Langfeðgatal’ in Kulturhistorisk Leksikon for Nordisk Middelalder, saying that "in texts of the twelfth century and later it appears to have been combined with the learned European fashion for tracing lineage back to Christian and classical forebears, such as Adam, Noah or the Trojan King Priam. An example of this type of genealogical text, or langfeðgatal, is found in the second appendix to Islendingabok."

Bruce suggested that Snorri Sturlson was in possession of the Langfeðgatal or a closely related text when he composed the detailed list of gods and heroes given in the introduction to the Prose Edda.[2]

Below is a comparative table of the Langfedgatal compared other Scnadinavian genealogies from the Yngling​:

Beowulf

eighth c.-tenth c.

Ynglingatal

late ninth c.

Íslendingabók

early twelfth c.

Langfeðgatal

twelfth c.

Historia Norvegiæ

late twelfth c.

Ynglinga saga

c. 1225

Hversu Noregr byggðist

1387

   Thor  Burri
   Hloritha  Burr
   Einrid  Óðinn Ásakonungr
  Yngvi TyrkjakonungrVingethorIngui Freyr
  Njörðr SvíakonungrVingenerNeorthNjörðrNjörðr
  FreyrModaFroyrYngvifreyrFreyr
 FjölnirFjölnirMagiFiolnirFjölnirFjölnir
 SveigðirSvegðirSeskef or SescefSwegthirSvegðirSveigðir
 VanlandiVanlandiBeduigWanlandaVanlandiVanlandi
 VísburrVisburrAthraWisburVísburrVísburr
 DómaldiDómaldrItermannDomaldDómaldiDómaldr
 DómarrDómarrHeremotDomarDómarrDómarr
 DyggviDyggviScealdnaDygguiDyggviDyggvi/Tryggvi
 Dagr SpakaDagrBeafDagrDagr SpakaDagr
 AgniAlrekrEatusAlricrAgniAgni Skjálfarbóndi
 Alrekr and EiríkrAgniGodulfHogniAlrekr and EiríkrAlrekr
 Yngvi and ÁlfrYngviFinnIngialdrYngvi and ÁlfrYngvi
 JörundrJörundrFreealafJorundrJörundr and EiríkrJörmunfróði/Jörundr
 AunAun inn gamliVoden, whom we call Odin "He was King of the Turks. He fled hither to the north because of the Romans"AuchunAun hinn gamliAunn inn gamli
OngenþeowEgillEgill VendilkrákaHis son SkioldEigil VendilcracaEgill TunnudólgrEgill Tunnadólgr
Ohthere and OnelaÓttarrÓttarrHis son FridleifOttarusÓttarr VendilkrákaÓttarr Vendilskráka
Eadgils and EanmundAðilsAðísl at UppsölumHis son Frode the PeacemakingAdils/AthislAðilsAðils at Uppsölum
 EysteinnEysteinnHis son FridleifEusteinEysteinnEysteinn
 YngvarrYngvarrHis son Havar the Strong in HandYnguarYngvarrYngvarr inn hári
 ÖnundrBraut-ÖnundrFrodeBroutonundrBrautönundrBraut-Önundr
 IngjaldrIngjaldr inn illráðiVarmund the WiseIngialdrIngjaldr hinn illráðiIngjaldr inn illráði
 ÓláfrÓláfr trételgjaOlaf the GentleOlavus tretelgiaÓláfr trételgjaÓlafr trételgja
 HálfdanHálfdan hvítbeinn UpplendigakonungrDan the Magnanimous (or "proud")Halfdan hwitbeinHálfdan hvítbeinnHálfdan hvítbeinn
 Eysteinn  EusteinEysteinnEysteinn
 Hálfdan  HalfdanHálfdan hinn mildiHálfdan inn mildi
 GuðröðrGoðröðr GuthrodrGuðröðr veiðikonungrGuðröðr veiðikonungr
 ÓlafrÓláfr Halfdan NigerÓlafrHálfdan svarti
 RögnvaldrHelgiHarald "The most fair"HaraldusRögnvaldr heiðum hæraHaraldr inn hárfagri