When Freyr snuck in and sat on Odin's throne Hliðskjálf (on which one can see anything, anywhere across the Nine Worlds), instead of seeing Freyja (who was recently lost somewhere), Freyr came across Gerðr, a beautiful giantess native to Jötunheimr. He fell in love, and sent his servant Skírnir to woo her for him, but Gerðr refused to marry the god until Skirnir threatened to kill Gerðr with Freyr's sword and damage her lands. Gerðr finally agreed to marry Freyr, who then gave his sword to Skírnir as a reward.