Lanudo the Sorrowsworn was a member of the Boneyard's honor guard, protecting the valley of draconic bones from outside influence. When his companions discovered he was selling access to the sacred site he was exiled and branded with one of the worst possible marks - Defiler. He started his exile by collecting a small posse of other exiles, but realized that true vengeance would require supernatural help. Traveling west, he traded the lives of each of his companions in a Mabaran manifest zone for dark powers.

The ancestral citadel of House Sivis is located in Korranberg. The name refers not to the towers that rise toward the sky, but to the maze of caverns stretching out below the enclave and under the Seawall Mountains. Once home to the ancestors of the clan, these caverns are festooned with carvings—historical records dating back to the Age of Dhakaan, etched carefully into the stone walls. Today, these tunnels also serve as the vaults of the house, holding records of vital communications and other secret lore.