Karl

From Metapedia

Karl was an early Scandinavian term for a freeman: the middle social class, generally equivalent to the English yeomanry.

In Scandinavian mythology, Karl was the given name of a solid young man, the son of a married farm woman who was impregnated by the god Heimdall, who, in human form, was an overnight house guest of the lady and her husband. During the same journey, the promiscuous Heimdall is also credited with fathering two more sons, Jarl and Thrall, each of whose names were assigned to a different social class.