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Guthorm

Legendary king of the Danes

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Source updated June 12, 2026

Guthorm or Guthormus was one of the earliest legendary Danish kings according to Saxo Grammaticus. He was a son of the Danish king, Gram, and a Swedish princess, Groa.

01History

His father was slain by the Norwegian king, Svipdagr. After the incident, Svipdagr installed him as the puppet king of the Danes. However, his half-brother, Hading refused the offer and entered exile, later he returned and retook his father's kingdom, but lack of mentions of Guthorm implies that his half-brother died before his return. (It is also stated that when Hading defeated Svipdag, he had vengeance not only for his father but also his brother, supporting the idea that Guthorm had already died.)

02Text

Gesta Danorum, Book One
GUTHORM and HADDING, the son of Gram (Groa being the mother of the first and Signe of the second), were sent over to Sweden in a ship by their foster-father, Brage (Swipdag being now master of Denmark), and put in charge of the giants Wagnhofde and Hafle, for guard as well as rearing.
Swipdag, now that he had slain Gram, was enriched with the realms of Denmark and Sweden; and because of the frequent importunities of his wife he brought back from banishment her brother Guthorm, upon his promising tribute, and made him ruler of the Danes. But Hadding preferred to avenge his father rather than take a boon from his foe.

The family tree of legendary Kings of the Danes, according to the Gesta Danorum (Books 1 to 9)

Kings of the Danes are marked with a crown (♕). Kings of the Swedes are marked with a dagger (†). Superscript numbers after a name indicate in which books of Gesta Danorum the individual is mentioned.

Humblus ♂ ⁽¹⁾

KEY

Angul ♂ ⁽¹⁾

♕ Dan I ♂ ⁽¹⁾

Grytha ♀ ⁽¹⁾

Marriage or coupling

Parent and child

The Angles

♕ Humblus ♂ ⁽¹⁾

♕ Lotherus ♂ ⁽¹⁾

King of the Saxons ♂ ⁽¹⁾

Succession by other or unclear means

Roarus ♂ ⁽¹⁾

Sigtrugus, King of the Swedes† ♂ ⁽¹⁾

♕ Skioldus ♂ ⁽¹⁾

Alvilda ♀ ⁽¹⁾

daughter of Roarus ♀ ⁽¹⁾

Bessus ♂ ⁽¹⁾

sister of Gram ♀ ⁽¹⁾

Gro ♀ ⁽¹⁾

♕ Gram† ♂ ⁽¹⁾

Sumblus, King of the Finns ♂ ⁽¹⁾

Wagnofthus ♂ ⁽¹⁾

Signe ♀ ⁽¹⁾

Henricus, King of the Saxons ♂ ⁽¹⁾

Haquinus, King of the Nitherians ♂ ⁽¹⁾

Harthgrepa ♀ ⁽¹⁾

♕Suibdagerus, King of Norway† ♂ ⁽¹⁾

sister of Guthormus ♀ ⁽¹⁾

♕Guthormus ♂ ⁽¹⁾

♕Hadingus ♂ ^(1,2,4,5)

Regnilda ♀ ⁽¹⁾

Asmundus† ♂ ⁽¹⁾

Gunnilda ♀ ⁽¹⁾

Guthormus ♂ ⁽¹⁾

Ulvilda ♀ ^(1,2)

♕ Ubbo ♂ ⁽²⁾

Henricus ♂ ⁽¹⁾

Uffo† ♂ ⁽¹⁾

Hundingus† ♂ ^(1,2)

Thorilda ♀ ⁽²⁾

Scottus ♂ ⁽²⁾

daughter of Uffo ♀ ⁽¹⁾

Regnerus† ♂ ⁽²⁾

Suanhuita ♀ ⁽²⁾

sisters of Suanhuita ♀♀ ⁽²⁾

Andwan, King of the Hellespont ♂ ⁽²⁾

Thoraldus ♂ ⁽²⁾

♕ Frotho I ♂ ^(2,5)

daughter of Andwan ♀ ⁽²⁾

Hothbrodus† ♂ ^(2,3)

♕ Haldanus I ♂ ⁽²⁾

Roe ♂ ⁽²⁾

Skato ♂ ⁽²⁾

Thora ♀ ⁽²⁾

♕ Helgo ♂ ^(2,3)

♕ Roe ♂ ⁽²⁾

Athislus† ♂ ^(2,3)

Ursa ♀ ⁽²⁾

King Gevarus ♂ ^(2,3)

♕ Rolvo Krake† ♂ ^(2,3)

Ruta ♀ ⁽²⁾

Biarco ♂ ⁽²⁾

Sculda ♀ ⁽²⁾

♕Hiarwarthus † ♂ ^(2,3)

♕ Hotherus† ♂ ^(2,3)

Nanna ♀ ⁽³⁾

Herlecus ♂ ⁽³⁾

Gericus ♂ ⁽³⁾

former King of Britain ♂ ⁽³⁾

mother of the King of Britain ♀ ⁽³⁾

a slave ♂ ⁽³⁾

a bondmaid ♀ ⁽³⁾

♕ Roricus Slyngebond ♂ ⁽³⁾

Gerwendillus ♂ ⁽³⁾

King of Britain ♂ ^(3,4)

Queen of Britain ♀ ^(3,4)

Gerutha ♀ ^(3,4)

Horwendillus ♂ ^(3,4)

Fengo ♂ ^(3,4)

foster sister of Amlethus ♀ ^(3,4)

daughter of the King of Britain ♀ ^(3,4)

Amlethus ♂ ^(3,4)

Herminthruda, Queen of Scotland ♀ ⁽⁴⁾

♕ Wiglecus ♂ ⁽⁴⁾

son of Amlethus ♂ ⁽⁴⁾

♕Wermundus ♂ ⁽⁴⁾

Frowinus, governor of Sleswik ♂ ⁽⁴⁾

♕ Uffo, or Olavus the Gentle ♂ ⁽⁴⁾

daughter of Frowin ♀ ⁽⁴⁾

Keto ♂ ⁽⁴⁾

Wigo ♂ ⁽⁴⁾

♕ Dan II ♂ ⁽⁴⁾

♕ Huglecus ♂ ⁽⁴⁾

♕ Frotho II, the Vigorous ♂ ⁽⁴⁾

♕ Dan III ♂ ⁽⁴⁾

Craca ♀ ⁽⁵⁾

Regnerus ♂ ⁽⁵⁾

Bracus ♂ ⁽⁵⁾

♕ Fridlevus I, the Swift ♂ ^(4,5)

Hun, King of the Huns ♂ ⁽⁵⁾

Hun ♂ ⁽⁵⁾

Gøtarus, King of Norway ♂ ⁽⁵⁾

Westmarus ♂ ⁽⁵⁾

Colo ♂ ⁽⁵⁾

Gøtwara ♀ ⁽⁵⁾

Rollerus ♂ ⁽⁵⁾

Ericus the Shrewd-spoken† ♂ ^(5,6)

Gunwara the Fair ♀ ⁽⁵⁾

Alvilda ♀ ⁽⁵⁾

♕ Frotho III ♂ ^(5,6)

Hanunda ♀ ⁽⁵⁾

Grep (eldest of three) ♂ ⁽⁵⁾

11 other sons (two named Grep) ♂♂ ⁽⁵⁾

Hythin, King of Tellemark ♂ ⁽⁶⁾

Alvo ♂ ⁽⁵⁾

Ofura ♀ ⁽⁵⁾

Arngrimus ♂ ⁽⁵⁾

Grubbus ♂ ⁽⁶⁾

♕ Hiarnus ♂ ⁽⁶⁾

Amundus, King of Norway ♂ ⁽⁶⁾

child of Hythin ⁽⁶⁾

Haldanus† ♂ ⁽⁶⁾

12 sons, including Angantir ♂♂ ⁽⁵⁾

Ano ♂ ⁽⁶⁾

Iuritha ♀ ⁽⁶⁾

♕ Fridlevus II ♂ ⁽⁶⁾

Frogertha ♀ ⁽⁶⁾

Hanevus, King of Saxony ♂ ⁽⁶⁾

Suertingus, King of Saxony ♂ ⁽⁶⁾

Olavus ♂ ⁽⁶⁾

♕ Frotho IV ♂ ⁽⁶⁾

Sywardus† ♂ ^(6,7)

sons of Suertingus ♂♂ ⁽⁶⁾

sister of the sons of Suertingus ♀ ⁽⁶⁾

♕ Ingellus ♂ ^(6,7)

Helga ♀ ⁽⁶⁾

Helgo ♂ ⁽⁶⁾

Asa ♀ ⁽⁶⁾

three sons that died in war ♂♂ ⁽⁷⁾

♕ Olavus I ♂ ⁽⁷⁾

Karolus, governor of Gothland ♂ ⁽⁷⁾

Ulvilda ♀ ⁽⁷⁾

♕ Frotho V ♂ ⁽⁷⁾

Hatherus ♂ ⁽⁷⁾

♕ Haraldus I ♂ ⁽⁷⁾

Sygne ♀ ⁽⁷⁾

Ericus† ♂ ⁽⁷⁾

Thorhilda ♀ ⁽⁷⁾

♕ Haldanus II Biargrammus† ♂ ⁽⁷⁾

♕Haraldus II ♂ ⁽⁷⁾

Ebbo ♂ ⁽⁷⁾

mother of Otharus ♀ ⁽⁷⁾

♕ Unguinus, King of the Goths ♂ ⁽⁷⁾

Asmundus ♂ ⁽⁷⁾

sister of Otharus ♀ ⁽⁷⁾

♕ Sywaldus I ♂ ⁽⁷⁾

Sygrutha ♀ ⁽⁷⁾

Kings of Norway

Sywardus, King of the Goths ♂ ⁽⁷⁾

mother of Alvilda ♀ ⁽⁷⁾

Otharus ♂ ⁽⁷⁾

Syritha ♀ ⁽⁷⁾

♕ Sygarus ♂ ⁽⁷⁾

queen of Sygarus ♀ ⁽⁷⁾

Hamundus, a petty king ♂ ⁽⁷⁾

Wemundus ♂ ⁽⁷⁾

Ostenus ♂ ⁽⁷⁾

♕Sywaldus II ♂ ⁽⁷⁾

Algerus ♂ ⁽⁷⁾

Helwin ♂ ⁽⁷⁾

Hamundus ♂ ⁽⁷⁾

Regnaldus, King of the Northmen ♂ ⁽⁷⁾

Alvilda ♀ ⁽⁷⁾

Alf ♂ ⁽⁷⁾

Sygne ♂ ⁽⁷⁾

Hagbarthus ♂ ⁽⁷⁾

Hako ♂ ⁽⁷⁾

Gro ♀ ⁽⁷⁾

Borcarus ♂ ⁽⁷⁾

Drota ♀ ⁽⁷⁾

Gunnarus ♂ ⁽⁷⁾

Hano, ruler of Funen ♂ ⁽⁷⁾

Ostmarus, ruler of Scania ♂ ⁽⁷⁾

Hundingus, ruler of Zealand ♂ ⁽⁷⁾

Roricus, co-ruler of Jutland ♂ ⁽⁷⁾

Hatherus, co-ruler of Jutland ♂ ⁽⁷⁾

Haraldus ♂ ⁽⁷⁾

Hildigerus ♂ ⁽⁷⁾

Røtho, a Ruthenian pirate ♂ ⁽⁷⁾

Wesetus ♂

♕Haldanus III ♂ ⁽⁷⁾

Guritha ♀ ⁽⁷⁾

Alverus† ♂ ^(7,8)

♕ Haraldus III Hyldetan ♂ ⁽⁷⁾

Olavus ♂ ⁽⁷⁾

Ingo ♂ ⁽⁷⁾

Ingeldus† ♂ ⁽⁷⁾

sister of Haraldus ♀ ⁽⁷⁾

Ubbo ♂ ⁽⁷⁾

sister of Haraldus ♀ ⁽⁷⁾

Sywardus ♂ ⁽⁷⁾

sister of Haraldus ♀ ⁽⁷⁾

Olavus, king of the Werms ♂ ⁽⁷⁾

♕ Ringo I† ♂ ^(7,8)

♕ Hetha ♀ ⁽⁸⁾

♕ Olo the Vigorous ♂ ^(7,8)

Esa ♀ ⁽⁷⁾

son of the king ♂ ^(7,8)

Atylo the Scanian ♂ ⁽⁸⁾

Ringo, ruler of Norway ♂ ⁽⁸⁾

Tola ♂ ⁽⁸⁾

Omothus, or Homothus ♂ ⁽⁸⁾

daughter of Ringo ♀ ⁽⁸⁾

Esa ♀ ⁽⁸⁾

♕ Omundus ♂ ^(7,8)

Sibbo ♂ ⁽⁸⁾

sister of Gøtarus ♀ ⁽⁸⁾

Gøtarus† ♂ ⁽⁸⁾

daughter of Omundus ♀ ⁽⁸⁾

♕ Sywardus I ♂ ⁽⁸⁾

♕ Buthlus ♂ ⁽⁸⁾

daughter of Omundus ♀ ⁽⁸⁾

Ebbo ♂ ⁽⁸⁾

early wife of Iarmericus ♀ ⁽⁸⁾

♕Iarmericus † ♂ ⁽⁸⁾

Suanilda ♀ ⁽⁸⁾

the Hellepontines, 4 brothers ♂♂ ⁽⁸⁾

Iarmericus' sister, sold to Norwegians ♀ ⁽⁸⁾

Iarmericus' sister, sold to Germans ♀ ⁽⁸⁾

♕ Broderus ♂ ⁽⁸⁾

nephews of Iarmericus ♂♂ ⁽⁸⁾

King of the Goths ♂ ⁽⁸⁾

♕ Sywaldus III ♂ ⁽⁸⁾

King of Sweden† ♂ ⁽⁸⁾

daughter of the King of the Goths ♀ ⁽⁸⁾

♕ Snio ♂ ⁽⁸⁾

♕ Biorn ♂ ⁽⁸⁾

♕ Haraldus III ♂ ⁽⁸⁾

a queen from Sweden ♀ ⁽⁸⁾

♕ Gormo I ♂ ⁽⁸⁾

♕ Gotricus, or Godefridus ♂ ^(8,9)

♕ Olavus III ♂ ⁽⁹⁾

daughter of Gotricus ♀ ⁽⁹⁾

Sywardus, King of Norway ♂ ⁽⁹⁾

unknown

♕Hemmingus ♂ ⁽⁹⁾

♕Siwardus II Ring ♂ ⁽⁹⁾

♕ Ringo II ♂ ⁽⁹⁾

Herothus† ♂ ⁽⁹⁾

Hesbernus ♂ ⁽⁹⁾

ruler in Norway ♂ ⁽⁹⁾

Lathgertha ♀ ⁽⁹⁾

♕Regnerus Lothbrog ♂ ⁽⁹⁾

Thora ♀ ⁽⁹⁾

Suanlogha ♀ ⁽⁹⁾

a woman ♀ ⁽⁹⁾

2 daughters ♀♀ ⁽⁹⁾

Fridlevus ♂ ⁽⁹⁾

♕ Haraldus ♂ ⁽⁹⁾

♕ Siwardus & Ericus ♂♂ ⁽⁹⁾

Rathbarthus ♂ ⁽⁹⁾

Dunwatus ♂ ⁽⁹⁾

Ubbo ♂ ⁽⁹⁾

Regnaldus ♂ ⁽⁹⁾

Withsercus ♂ ⁽⁹⁾

Ericus Wind-hat ♂ ⁽⁹⁾

Guthormus ♂ ⁽⁹⁾

♕ Ericus I ♂ ⁽⁹⁾

♕ Sywardus Snake-Eye ♂ ⁽⁹⁾

Biornus ♂ ⁽⁹⁾

Agnerus ♂ ⁽⁹⁾

Ivarus ♂ ⁽⁹⁾

daughter of Guthormus ♀ ⁽⁹⁾

♕ Ericus II ♂ ⁽⁹⁾

♕ Kanutus I ♂ ⁽⁹⁾

♕ Frotho VI ♂ ⁽⁹⁾

♕ Gormo II the English ♂ ⁽⁹⁾

♕ Haraldus V ♂ ⁽⁹⁾

Hedelradus, King of England ♂ ⁽⁹⁾

♕ Gormo III ♂ ⁽⁹⁾

Thira ♀ ⁽⁹⁾

Kanutus ♂ ⁽⁹⁾

Haraldus VI ♂ ⁽⁹⁾

Genealogical information is derived from Oliver Elton's 1905 translation, The First Nine Books of the Danish History of Saxo Grammaticus (via Wikisource). Name spellings are from the 1931 Latin critical edition by Olrik and Ræder (via Wikisource). Regnal numbers, which do not appear in the original text, are included for clarity and taken from the engraving Veræ effigies regum omnium by Erico Olai Tormio.

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Sources and credits

This article is adapted from the Wikipedia article “Guthorm”, written by its contributors and licensed under CC BY-SA 4.0. Fathomly has changed the layout, removed citation markers, navigation and maintenance notices, and adjusted punctuation. This adapted version is shared under the same license. For references, see the original article.

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