Legends of Faerûn
A wealthy dwarf merchant, and the eldest of three brothers.
Gundren Rockseeker, eldest of the three Rockseeker brothers, is a smith and caravan leader by trade. Unlike most dwarves which are reclusive, Gundren has friends and allies among most of the good races of the world.
He has two younger brothers, Nundro and Tharden. Together, they planned to explore Wave Echo Cave and recover its riches. Unfortunately, on his way to Phandalin, he was waylaid by goblins in the pay of an Unknown Necromancer. He was captured and taken to Craigmaw Castle, along with the map showing the location of Wave Echo Cave.