From Snorri's Ynglinga Saga

2. OF THE PEOPLE OF ASIA. 

The country east of the Tanaquis [=Don River]  in Asia was called Asaland, or Asaheim, and the chief city in that land was called Asgaard.  In that city was a chief called Odin, and it was a great place for sacrifice.  It was the custom there that twelve temple priests should both direct the sacrifices, and also judge the people. They were called Diar, or Drotner, and all the people served and obeyed them.  Odin was a great and very far-travelled warrior, who conquered many kingdoms, and so successful was he that in every battle the victory was on his side.  It was the belief of his people that victory belonged to him in every battle.  It was his custom when he sent his men into battle, or on any expedition, that he first laid his hand upon their heads, and
called down a blessing upon them; and then they believed their undertaking would be successful.  His people also were accustomed, whenever they fell into danger by land or sea, to call upon his name; and they thought that always they got comfort and aid by it, for where he was they thought help was near. Often he went away so far that he passed many seasons on his
journeys.

3. OF ODIN'S BROTHERS.
Odin had two brothers, the one called Ve, the other Vilje, and they governed the kingdom when he was absent.  It happened once when Odin had gone to a great distance, and had been so long away that the people Of Asia doubted if he would ever return home, that his two brothers took it upon themselves to divide his estate; but both of them took his wife Frigg to themselves.  Odin
soon after returned home, and took his wife back.


4. OF ODIN'S WAR WITH THE PEOPLE OF VANALAND.

Odin went out with a great army against the Vanaland people; but they were well prepared, and defended their land; so that victory was changeable, and they ravaged the lands of each other, and did great damage.  They tired of this at last, and on both sides appointed a meeting for establishing peace, made a truce, and exchanged hostages.  The Vanaland people sent their best men, Njord the Rich, and his son Frey.  The people of Asaland sent a man called Hoenir, whom they thought well suited to be a chief, as he was a stout and very handsome man; and with him they sent a man of great understanding called Mimir.  On the other side, the Vanaland people sent the wisest man in their community, who was called Kvasir.  Now, when Hoenir came to Vanaheim he was immediately made a chief, and Mimir came to him with good counsel on all
occasions.  But when Hoenir stood in the Things or other meetings, if Mimir was not near him, and any difficult matter was laid before him, he always answered in one way -- "Now let others give their advice"; so that the Vanaland people got a suspicion that the Asaland people had deceived them in the exchange of men. They took Mimir, therefore, and beheaded him, and sent his head to the Asaland people.  Odin took the head, smeared it with herbs so that it should not rot, and sang incantations over it.  Thereby he gave it the power that it spoke to him, and discovered to him many secrets.  Odin placed Njord and Frey as priests of the sacrifices, and they became Diar of the Asaland people.  Njord's daughter Freya was priestess of the sacrifices, and first taught the Asaland people the magic art, as it was in use and fashion among the Vanaland people.  While Njord was with the Vanaland people he had taken his own sister in marriage, for that was allowed by their law; and their children were Frey and Freya. But among the Asaland people it was forbidden to intermarry withsuch near relations.