Rígsþula

Ríg is the name applied to a Norse god described as "old and wise, mighty and strong" in the Eddic poem Rígthula (Old Norse Rígsþula - Song of Ríg). The prose introduction tells that Ríg is another name for Heimdall, who is moreover called the father of mankind in Völuspá.Rig wandered through the world and brought into being (apparently by fathering them) the progenitors of the three classes of human beings as conceived by the poet. The youngest of these sons inherited the name "Ríg" and in turn his youngest son, Kon the Young or Kon ung (konung meaning 'king' in Old Norse) also inherited the name or title "Ríg". This third Ríg was the first true king and the ultimate founder of the state of royalty as appears in the Rígsthula and in two other works in connection. In all three sources he is connected with two primordial Danish rulers named Dan and Danp.
See more at Wikipedia.org...