In the "Íslendingabók" (written in the early twelfth century by the Icelandic priest Ari Þorgilsson) "Yngvi Tyrkja konungr" 'Yngvi king of Turkey' appears as the father of Njörðr who in turn is the father of Yngvi-Freyr, ancestor of the Ynglings. According to the "Skjöldunga saga" (a lost epic from 1180–1200, saved only partially in other sagas and later translation) Odin came from Asia and conquered Northern Europe. He gave Sweden to his son Yngvi and Denmark to his son Skjöldr. Since then the kings of Sweden were called Ynglings and those of Denmark Skjöldungs.