The Chronicle of Lejre (Chronicon Lethrense) written about 1170 introduces a primeval King Ypper of Uppsala whose three sons were Dan, who afterwards ruled Denmark, Nori, who afterwards ruled Norway, and Østen, who afterwards ruled the Swedes. Dan apparently first ruled in Zealand for the Chronicle states that it was when Dan had saved his people from an attack by the Emperor Augustus that the Jutes and the men of Fyn and Scania also accepted him as king, whence the resultant expanded country of Denmark was named after him. Dan's wife was named Dana and his son was named Ro.
