Jörmungandr: The Midgard Serpent in Norse Mythology
According to Snorri's Edda, he is the son of the malicious god Loki and the giantess Angrboda, and the brother of the wolf Fenrir as well as the goddess of the underworld Hel.

According to Snorri's Edda, he is the son of the malicious god Loki and the giantess Angrboda, and the brother of the wolf Fenrir as well as the goddess of the underworld Hel.