Frotho I

Frotho I is one of the legendary Danish kings in Saxo Grammaticus' Gesta Danorum, where he has a substantial biography. He succeeds his father Hadingus to the throne and replenishes the war-drained treasury by slaying a dragon and winning its treasure. He uses the money to finance expeditions into the Baltic, where he wins victories with clever strategems (including one where he crossdresses as one of his own shieldmaidens). After some trouble at home he campaigns successfully in Britain and captures London. He finally dies in a war against the king of Sweden.

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

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

⁽¹⁾ Humble

KEY

⁽¹⁾ Angul

⁽¹⁾ Dan ♕

⁽¹⁾ Grytha

Marriage or coupling

Parent and child

The Angles

⁽¹⁾ Humble ♕

⁽¹⁾ Lother ♕

⁽¹⁾ King of the Saxons

Succession by other or unclear means

⁽¹⁾ Roar

⁽¹⁾ Sigtryg, King of the Swedes†

⁽¹⁾ Skiold ♕

⁽¹⁾ Alfhild

⁽¹⁾ daughter of Roar

⁽¹⁾ Bess

⁽¹⁾ sister of Gram

⁽¹⁾ Gróa

⁽¹⁾ Gram ♕†

⁽¹⁾ Sumble, King of the Finns

⁽¹⁾ Wagnhofde

⁽¹⁾ Signe

⁽¹⁾ Henry, King of the Saxons

⁽¹⁾ Hakon, King of the Nitherians

⁽¹⁾ Hardgrep

⁽¹⁾ Swipdag ♕†, King of Norway

⁽¹⁾ sister of Guthorm

⁽¹⁾ Guthorm ♕

^(1,2,5) Hadding ♕

⁽¹⁾ Ragnhild

⁽¹⁾ Asmund†

⁽¹⁾ Gunnhild

⁽¹⁾ Guthorm

^(1,2) Ulfhild

⁽²⁾ Ubbe ♕

⁽¹⁾ Henry

⁽¹⁾ Uffe†

^(1,2) Hunding†

⁽²⁾ Thorhild

⁽²⁾ Scot

⁽¹⁾ daughter of Uffe

⁽²⁾ Ragnar†

⁽²⁾ Swanhwid

⁽²⁾ sisters of Swanhwid

⁽²⁾ Handwan

⁽²⁾ Thorwald

^(2,5) Frode ♕

⁽²⁾ daughter of Handwan

^(2,3) Hothbrodd†

⁽²⁾ Halfdan ♕

⁽²⁾ Ro

⁽²⁾ Skat

⁽²⁾ Thora

^(2,3) Helge ♕

⁽²⁾ Ro ♕

^(2,3) Athisl†

⁽²⁾ Urse

^(2,3) King Gewar

^(2,3) Rolf Krage ♕†

⁽²⁾ Rute

⁽²⁾ Bjarke

⁽²⁾ Skulde

^(2,3) Hiartuar †♕

^(2,3) Hother †♕

⁽³⁾ Nanna

⁽³⁾ Herlek

⁽³⁾ Gerit

⁽³⁾ former King of Britain

⁽³⁾ mother of the King of Britain

⁽³⁾ a slave

⁽³⁾ a bondmaid

⁽³⁾ Rorik ♕

⁽³⁾ Gerwendil

^(3,4) King of Britain

^(3,4) Queen of Britain

^(3,4) Gerutha

^(3,4) Horwendil

^(3,4) Feng

^(3,4) foster sister of Amleth

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

^(3,4) Amleth

⁽⁴⁾ Hermutrude, Queen of Scotland

⁽⁴⁾ Wiglek ♕

⁽⁴⁾ son of Amleth

⁽⁴⁾ Wermund ♕

⁽⁴⁾ Frowin, governor of Sleswik

⁽⁴⁾ Uffe ♕, aka Olaf the Gentle

⁽⁴⁾ daughter of Frowin

⁽⁴⁾ Ket

⁽⁴⁾ Wig

⁽⁴⁾ Dan ♕

⁽⁴⁾ Hugleik ♕

⁽⁴⁾ Frode the Vigorous ♕

⁽⁴⁾ Dan ♕

⁽⁵⁾ Kraka

⁽⁵⁾ Ragnar

⁽⁵⁾ Brak

^(4,5) Fridleif the Swift ♕

⁽⁵⁾ Hun, King of the Huns

⁽⁵⁾ Hun

⁽⁵⁾ Gotar, King of Norway

⁽⁵⁾ Westmar

⁽⁵⁾ Koll

⁽⁵⁾ Gotwar

⁽⁵⁾ Roller

^(5,6) Erik† Shrewd-spoken

⁽⁵⁾ Gunwar the Fair

⁽⁵⁾ Alfhild

^(5,6) Frode ♕

⁽⁵⁾ Hanund

⁽⁵⁾ Grep (eldest of three)

⁽⁵⁾ 11 other sons (two named Grep)

⁽⁶⁾ Hythin, King of Tellemark

⁽⁵⁾ Alf

⁽⁵⁾ Eyfura

⁽⁵⁾ Arngrim

⁽⁶⁾ Grubb

⁽⁶⁾ Hiarn ♕

⁽⁶⁾ Amund, King of Norway

⁽⁶⁾ child of Hythin

⁽⁶⁾ Halfdan†

⁽⁵⁾ 12 sons, including Anganty

⁽⁶⁾ Ane

⁽⁶⁾ Juritha

⁽⁶⁾ Fridleif ♕

⁽⁶⁾ Frogertha

⁽⁶⁾ Hanef, King of Saxony

⁽⁶⁾ Swerting, King of Saxony

⁽⁶⁾ Olaf

⁽⁶⁾ Frode ♕

^(6,7) Siward†

⁽⁶⁾ sons of Swerting

⁽⁶⁾ sister of the sons of Swerting

^(6,7) Ingild ♕

⁽⁶⁾ Helga

⁽⁶⁾ Helge

⁽⁶⁾ Asa

^(6,7) Frode

^(6,7) Fridleif

^(6,7) Ingild

^(6,7) Olaf ♕

⁽⁷⁾ Karl, governor of Gothland

⁽⁷⁾ Ulfhild

⁽⁷⁾ Frode ♕

⁽⁷⁾ Hather, a chief

⁽⁷⁾ Harald ♕

⁽⁷⁾ Signe

⁽⁷⁾ Erik†

⁽⁷⁾ Thorhild

⁽⁷⁾ Halfdan Biargramm ♕†

⁽⁷⁾ Harald

⁽⁷⁾ Asmund

Kings of Norway

Name spellings are derived from Oliver Elton's 1905 translation, The First Nine Books of the Danish History of Saxo Grammaticus, via Wikisource.