Jarl is a noble Norse warrior renowned for his strength and intelligence. He is the son of Heimdal who, in many stories, is the grandson of Odin, father of the gods.
According to Norse legend, Heimdal disguised himself as a human named Rig, and leaves his post at the gateway to Asgard, where he is guarding the gods, to travel the earth where he fathered three children: Thrall (serf), Karl (freeman) and Jarl (earl).
Jarl enhanced his noble status by marrying Erna, the beautiful daughter of the nobleman Hersis. As a noble earl with his own hall, Jarl, gathered a loyal following. Like all aristocrats in Viking society, Jarl served under the king, training warriors and overseeing vast estates.