Thaurissan

Sorcerer and Emperor of the Dark Iron Clan during the War of the Three Hammers, he retreated to the Dark Iron capital city of his name after their defeat and summoned the Firelord Ragnaros. The arrival of Ragnaros caused cataclysmic changes to the Redridge Mountains and formed Blackrock Spire killing Emperor Thaurissan and destroying the Dark Iron city.

His rule continues on by his son Emperor Dagran Thaurissan who resides in the instance Blackrock Depths.