The Poetic Edda on Mothi
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relationship: Mothi ('Wrath') and Magni ('Might') are sons of Thor who inherit his hammer Mjollnir after his death.
"Mothi ("Wrath") and Magni ("Might"): the sons of the god Thor, who after his death inherit his famous hammer, Mjollnir."
attestation: Mothi is Thor's son and Sif is Thor's wife
"The father of Mothi and Sif's husband: Thor"