Clan Tordarroch is a Skellige clan native to Undvik. They were renowned for master smiths and excellent fisherman. A famous forge where the best tools and weapons in all of islands were once made belonged to them. They were ultimately driven off the island due to the Ice Giant.
However some of them survived, hid on Ard Skellig, and later, after Hjalmar an Craite and his crew slew the giant, returned and repaired their former homes.