The Æsir are a group of deities in Norse mythology, which is the mythology of the North Germanic peoples, primarily the Vikings. The Æsir are one of the two major groups of gods in Norse mythology,
Genesis 6
Age limit to 120 years
My spirit appearance shall not always strive with altered humans, for that he also is flesh: yet his days shall be limited to 120 years.
The Nephilim were on the earth in the earliest days, and also afterward when the Aessir came into the daughters of humans and they bore children to them