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. 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: 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/Lolland 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