Moira Bronzebeard Thaurissan
The lore behind the the Blackwing Lair raid
Blackrock Mountain was home to a lot of end-game content during vanilla-era World of Warcraft, were everyone would gather to run Blackrock Depths, Blackrock Spire, Molten Core, and starting in patch 1.6.0, Blackwing Lair.
Know Your Lore: The Dark Iron Dwarves of Blackrock Mountain
When last we talked about the Dark Iron Dwarves, Sorcerer-Thane Thaurissan had just summoned Ragnaros and destroyed himself and the city that bore his name in the process.