Already in Jordanes' Getica, the Danes, of the same tribe as the Swedes, are said to have emigrated from Sweden to Denmark in ancient times.
Gesta Danorum (''Danish'')
Gesta Danorum continues to say that Angul had his name given to the region he governed, and that his descendants later conquered Great Britain, and substituted the new title of their own land for the island's original name. Angul had a brother named Dan who in like manner became the ancestor and ruler of the Danes. There are other Nordic traditions that correspond to this. While Angul is not mentioned here, his brother Dan is.
In the Chronicle of Leire, there is a King Ypper of Uppsala, whose sons were Dan, Nori, and Östen. Dan afterwards ruled Denmark, Nori afterwards ruled Norway, and Östen afterwards ruled the Swedes.
According to Arngrim Jonsson's Latin epitome of the lost Skjöldungasaga made in 1597, Rigus had a son called Dan or Danum, whose subjects were called Danes.
The Eddic poem Rígsþula tells how the god Rígr, fathered a son named Ríg-Jarl. Ríg-Jarl had eleven sons, the youngest of whom bore the name Konr the Young. One day, as he was hunting and snaring birds, a crow spoke to him and suggested he would gain more by going after men, and praised the wealth of "Dan and Danp". They are noted as grand son and son of Rig in Ynglinga saga. According to Arngrímur Jónsson's Latin epitome of the lost Skjöldungasaga made in 1597, Rig marries Dana, daughter of Danp, and they get Dan of the Danes.
Ynglinga saga (''Norwegian'')
's Ynglinga saga relates of King Dygvi of Sweden, that his wife was a daughter of King Danp, the son of Rig, who was first called konungr in the Danish tongue. She was a sister of King Dan Mikillati, from whom Denmark took its name.
The Ballad of Eric deals with Eric, the first king ofGötaland. He sent a troop of Geats southward to a country named Vetala, where no one had yetcultivated the land. Later, a king named Humli sent his son Dan to rule the settlers. After Dan, Vetala was named Denmark. The Ballad of Eric is now regarded as an inauthentic piece of fakelore.
