Earth

And this is why he can be called All-father,
that he is father of all the gods and of men and of
everything that has been brought into being by him and his power.
The earth was his daughter and his wife. Out of her he begot the
first of his sons, that is Asa-Thor. He was possessed of power and
strength. As a result he overcomes all living things.


- Prose Edda, Gylfaginning