Þrívaldi
In Norse mythology, Þrívaldi, whose name means "thrice mighty", is a giant killed by Thor.
This fact is mentioned by Snorri Sturluson in the Skáldskaparmál, according to which "killer of Þrívaldi" is a kenning for Thor. Snorri quotes one stanza by Bragi Boddason, who calls Thor "cleaver apart of Þrívaldi's nine heads", and another stanza by Vetrliði Sumarliðason who praises Thor for having battered Þrívaldi.
Þrívaldi is also listed in the þulur.
