Grid

Grid ("Peace") was a friendly frost-giantess.
By Odin, she was the mother of Vidar, whom she made special iron-shoes.

When Thor came to spent the night with her, she warned him of Geirröd's teachery and gave him her magic staff ("Grídr's Rod"), a pair of iron gloves and gridle of might, with which he defeated Geirröd and his daughters.

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