Hergrim
Rock-dwelling giant who carried off Ama from Ymisland, ancestor of Thorgrim Halftroll.
Hergrim was a giant who dwelt in the rocks, attested in the Hervarar Saga ok Heidreks. He "carried off from Ymisland Ama the daughter of Ymir, and afterwards married her" (Hervarar Saga ok Heidreks, The Saga Of Hervor And Heithrek). Their son was Thorgrim Halftroll, whose byname preserves the memory of Hergrim's giant ancestry in the lineage.
The Hervarar Saga ok Heidreks introduces Hergrim to establish a genealogy that bridges the giant world and the human. The abduction and marriage of Ama from Ymisland is presented matter-of-factly, characteristic of the saga tradition's treatment of unions between humans and giants. The offspring Thorgrim "Halftroll" carries the hybrid ancestry in his name, suggesting that the saga world recognized and marked such mixed lineages rather than concealing them.
On trail: Genealogies