Hrólfr Kraki (Old Norse: ), Hroðulf, Rolfo, Roluo, Rolf Krage (early 6th centuryThe dating has never been a matter of controversy. It is inferred from the internal chronology of the sources themselves and the dating of Hygelac's raid on Frisia to c. 516. It is also supported by archaeological excavations of the barrows of Eadgils and Ohthere in Sweden. For a discussion, see e.g. Birger Nerman's Det svenska rikets uppkomst (1925) (in Swedish). For presentations of the archaeological findings, see e.g. Elisabeth Klingmark's Gamla Uppsala, Svenska kulturminnen 59, Riksantikvarieämbetet (in Swedish), or this English language presentation by the Swedish National Heritage Board ) was a semi-legendary Danish king who appears in both Anglo-Saxon and Scandinavian tradition.

Both traditions describe him as a Danish Scylding, the nephew of Hroðgar and the grandson of Healfdene. The consensus view is that Anglo-Saxon and Scandinavian traditions describe the same people.Shippey, T. A.: Wicked Queens and Cousin Strategies in Beowulf and Elsewhere, Notes and Bibliography. In The Heroic Age Issue 5 Summer 2012. Whereas the Anglo-Saxon Beowulf and Widsith do not go further than treating his relationship with Hroðgar and their animosity with Froda and Ingeld, the Scandinavian sources expand on his life as the king at Lejre and on his relationship with Halga, Hroðgar's brother. In Beowulf and Widsith, it is never explained how Hroðgar and Hroðulf are uncle and nephew.

Beowulf

The poem Beowulf introduces Hroðulf as kinsman.lines 1011-1017 Later, the text explains that Hroðulf is Hroðgar's nephew and that "each was true to the other".lines 1162-1165 Hroðgar is given three siblings, brothers Heorogar and Halga and an unnamed sister, all the children of Healfdene and belonging to the royal clan known as the Scyldings.Lines 53-63 The poem does not indicate which of Hroðgar's siblings is Hroðulf's parent, but later Scandinavian tradition establishes this as Halga.

Hroðgar and queen Wealhþeow had two young sons, Hreðric and Hroðmund, and Hroðulf would be their guardian in case Hroðgar dies. In a deliberately ironic passageWright, David. Beowulf. Panther Books, 1970. . page 14 it appears that the queen trusts Hroðulf, not suspecting that he will murder her sons to claim the throne for himself:

--Ic minne can glædne Hroðulf, þæt he þa geogoðe wile arum healdan, gyf þu ær þonne he, wine Scildinga, worold oflætest; wene ic, þæt he mid gode gyldan wille uncran eaferan, gif he þæt eal gemon, hwæt wit to willan and to worð-myndum umbor wesendum ær arna gefremedon.Lines 1181-1188.--For gracious I deem my Hrothulf, willing to hold and rule nobly our youths, if thou yield up first, prince of Scyldings, thy part in the world. I ween with good he will well requite offspring of ours, when all he minds that for him we did in his helpless days of gift and grace to gain him honor!Modern English translation by Francis Barton Gummere

No existence of any Hreðric or Hroðmund, sons of Hroðgar, has survived in Scandinavian sources (although Hreðric has been suggested to be the same person as Hroerekr/Roricus, a Danish king generally described as a son or successor of IngjaldThe Cambridge History of English and American Literature in 18 Volumes. (1907–21) Volume I: "From the Beginnings to the Cycles of Romance".). This Hroerekr is sometimes said to have been killed by Hrólfr, vindicating the foreshadowing in Beowulf.

The Scyldings were in conflict with another clan or tribe named the Heaðobards led by their king Froda and his son Ingeld. It is in relation to this war that Hroðulf is mentioned in the other Anglo-Saxon poem where he appears, Widsith.

Hrólf and Hroðulf A common identification is that Hrólf Kraki is the same as the character Hroðulf (Hroðgar's nephew) in Beowulf. There seems to be some foreshadowing in Beowulf that Hroðulf will attempt to usurp the throne from Hroðgar's sons Hreðric and Hroðmund, a deed that also seems to be referred to in Saxo Grammaticus's Gesta Danorum (Book 2), where we find: "... our king, who laid low Rorik, the son of Bok the covetous, and wrapped the coward in death." Rorik is the form we would expect Hreðric to take in Danish and we find personages named Rorik or Hrok or similar in most version of the Hrólf Kraki tradition, but differently accounted for, seemingly indicating that Scandinavian tradition had forgotten who exactly Hreðric/Rorik/Hrok was and various story tellers subsequently invented details to explain references to this personage in older poems. The future slaying of Hreðric may be the occasion of the future burning of the hall of Heorot in the beginning of the poem – though some take it instead to refer to the legendary death of Hrólf Kraki, who in Icelandic sources is said to have died in the burning of his hall by his brother-in-law Hjörvard.

Beowulf and Bjarki The standard view is that, if Beowulf himself has a 'cognate' character in Rolf Kraki's story, it is Bödvar Bjarki (Bodvar Biarke),Tom Shippey, J. R. R. Tolkien (London 2001) p. 31 who also has a younger companion, Hjalti (Hialte) – perhaps matching the Beowulf character Wiglaf. Beowulf comes from Geatland (= Götaland) and one of Bödvar Bjarki's elder brothers, Thorir, becomes a king of Götaland. Moreover, like Beowulf, Bödvar Bjarki arrives in Denmark from Götaland (Geatland), and upon arriving in Denmark he kills a beast that has been ravaging the Danish court for two years. The monster in Hrólf Krakis saga, however, is quite unlike the Grendel of Beowulf; but it does have characteristics of a more typical dragon, a creature which appears later in Beowulf. Just as Beowulf and Wiglaf slay a dragon at the end of Beowulf, Bödvar Bjarki and Hjalti help each other slay the creature in Denmark.

Proponents of this theory, like J. R. R. Tolkien,T. A. Shippey, The Road to Middle-Earth (London 1992) p. 73 argue that both the names Beowulf (lit. "bee-wolf", a kenning for "bear") and Bjarki are associated with bears. Bodvar Bjarki is constantly associated with bears, his father actually being one.

In some of the Hrólf Kraki material, Bödvar Bjarki aids Adils in defeating Adils' uncle Áli, in the Battle on the Ice of Lake Vänern. In Beowulf, the hero Beowulf aids Eadgils in Eadgils' war against Onela. As far as this Swedish adventure is concerned, Beowulf and Bödvar Bjarki are one and the same. This match supports the hypothesis that the adventure with the dragon is also originally derived from the same story.

Hrothgar and Hróar As for the king of the Danes, Hroðgar, he is identical to Hróar or Ro, the uncle of Hrólf Kraki who in other sources outside of Beowulf rules as a co-king with his brother Helgi. But in those sources it is Hróar/Hroðgar who dies before his brother or who departs to Northumberland to rule his wife's kingdom leaving Helgi/Halga the sole rule of Denmark. In Beowulf Halga/Helgi has died and Hroðgar is the primary ruler with Hroðulf son of Halga as a junior co-ruler.

Furthermore, the Swedish kings referenced in Beowulf are adequately matched with the 5th and 6th century Swedish kings in Uppsala (see also Swedish semi-legendary kings): This has obviously nothing to do with a common origin of the Beowulf and Hrólf Kraki legends in particular but simply reflects a shared genealogical tradition.

Beowulf Hrólf Kraki, Heimskringla etc. Relation Ongenþeow Egil (Angantyr) father of Ottar and Ale Ohthere Ottar brother of Áli Onela Áli brother of Ottar Eadgils Adils son of Ottar

Widsith The poem Widsith also mentions Hroðgar and Hroðulf, but indicates that the feud with Ingeld did not end until the latter was defeated at Heorot:

lines 45–59:Hroþwulf ond Hroðgar heoldon lengestHroðulf and Hroðgar held the longestsibbe ætsomne suhtorfædran, peace together, uncle and nephew,siþþan hy forwræcon wicinga cynn since they repulsed the Viking-kinond Ingeldes ord forbigdan, and Ingeld to the spear-point made bow,forheowan æt Heorote Heaðobeardna þrym. hewn at Heorot Heaðobard's army.

This piece suggests that the conflict between the Scyldings Hroðgar and Hroðulf on one side, and the Heaðobards Froda and Ingeld on the other, was well known in Anglo-Saxon England. This conflict also appears in Scandinavian sources, but in the Norse tradition the Heaðobards had apparently been forgotten and the conflict is instead rendered as a family feud (see Hrólf Kraki's saga and Skjöldunga saga).

Chronicon Lethrense and Annales Lundenses The Chronicon Lethrense and the included Annales Lundenses tell that Haldan (Healfdene) had two sons, Helghe (Halga) and Ro (Hroðgar). When Haldan died of old age, Helghe and Ro divided the kingdom so that Ro ruled the land, and Helghe the sea. One day, Helghe arrived in Halland/LollandHalland according to Chronicon Lethrense proper, Lolland according to the included Annals of Lund and slept with Thore, the daughter of one of Ro's farmers. This resulted in a daughter named Yrse. Much later, he met Yrse, and without knowing that she was his daughter, he made her pregnant with Rolf. Eventually, Helghe found out that Yrse was his own daughter and, out of shame, went east and killed himself.

Both Helghe and Ro being dead, a Swedish king, called Hakon in the Chronicon Lethrense proper, and Athisl in the Annales – corresponding to Eadgils – forced the Danes to accept a dog as king. The dog king was succeeded by Rolf Krage.

Rolf Krage was a big man in body and soul and was so generous that no one asked him for anything twice. His sister Skulda was married against Rolf's will to Hartwar or Hiarwarth (Heoroweard), a German earl of Skåne, but reputedly Rolf had given Skulda to him together with Sweden.

This Hartwar arrived in Zealand with a large army and said that he wanted to give his tribute to Rolf, but killed Rolf together with all his men. Only one survived, Wigg, who played along until he was to do homage to Hartwar. Then, he pierced Hartwar with a sword, and so Hartwar was king for only one morning.

Gesta Danorum The Book 2 of the Gesta Danorum by Saxo Grammaticus contains roughly the same information as the Chronicon Lethrense and the Annales Lundenses, i.e. that Ro (Hroðgar) and Helgo (Halga) were the son of Haldanus (Healfdene). When Haldanus died of old age, Ro took the land and Helgo the water. One day during his sea roving, Helgo arrived at Thurø, where he found and raped the young girl Thora, which resulted in Urse (Yrsa). When Helgo after many years returned to Thurø, Thora avenged her lost virginity by sending Urse to Helgo who, unknowingly raped his own daughter. This resulted in Roluo, who was a gifted man, both physically and intellectually and as brave as he was tall. After some time Helgo repelled a Swedish invasion, avenged Ro by killing the Swedish king Hothbrodd, and made the Swedes pay tribute. However, he committed suicide due to shame for his incestuous relationship with Urse. Roluo succeeded him.

The new king of Sweden, Athislus (Eadgils), thought that the tribute to the Daner might be smaller if he married the Danish king's mother and so took Urse for a queen. However, after some time, Urse was so upset with the Swedish king's greed that she thought out a ruse to run away from the king and at the same time liberate him of his wealth. She incited Athislus to rebel against Roluo, and arranged so that Roluo would be invited and promised a wealth in gifts.

At the banquet Roluo was at first not recognised by his mother, but when their fondness was commented on by Athisl, the Swedish king and Roluo made a wager where Roluo would prove his endurance. Roluo was placed in front of a fire that exposed him to such heat that finally a maiden could suffer the sight no more and extinguished the fire. Roluo was greatly recompensed by Athisl for his endurance.