About Þrúðr or Thrud
Þrúðr (Old Norse "strength"),sometimes anglicized as Thrúd or Thrud, is a daughter of the major god Thor in Norse mythology. Þrúðr is also the name of one of the valkyries who serve ale to the einherjar in Valhalla (Grímnismál, stanza 36). The two may or may not be the same figure.
THRUD: Unfortunately-named daughter of THOR and SIF. (Her name actually means 'Power', but it still sounds ugly whatever language you say it in.)
She was betrothed to a dwarf called Alvis, but THOR was not happy and tricked the dwarf into staying up all night. As the morning dawned, Alvis got caught by the sunrise. This is not good for dwarves as they turn to stone. Wedding off.
After this unfortunate enforced jilt, THRUD seems to have taken a vow of chastity and become one of the VALKYRIES.