Gundren Rockseeker is a Dwarf and the middle brother of the Rockseeker trio. Miners by trade, he and his brothers were digging in the areas around the frontier town of Phandalin in search of a profitable stake. In need of supplies he hired five adventures in the town of Neverwinter to provide protection and escort services for his supply wagon as they transport it to Phandalin. Gundren set out ahead of them along with his bodyguard Sildar Hallwinter but was captured by the King Grol of the Cragmaw Goblins. Eventually rescued by Chaotic Gold , a group in his hire. This story may be found in the Lost Mines of Phandelver story.
Years earlier, Gundren played a critical rule in the history of Mithril Hall as he was int he right place at the right time, able to rescue Bryllin Stoneheart from the great purge as described in the Curse of Mithril Hall