| Category | Ruins |
| Continent | Brucrumus |
| Region | Lands of Purity |
| Built | 7 War March 1311 |
| Map | Adellum |
Holy Sanctum was built by the Farinteen Dynasty. An imposing and towering fortress made entirely of Gûn Helmet, it was a bulwark against the incessant raids from the Northern Hordelands. Over time, the place came to be a tournament area and training grounds for those looking to hone their skills before going off to fight the barbarians of the northern reaches. An area of recruitment, religious fanaticism, and proselytizers attached to each group sent out, it was also the command center for the Lances of Merioss.
From 1481 to 1483, in the Luran Campaign, this bastion and the area around was attacked and besieged by the undead armies of the Black Tide. In the last great attack of the siege, Dax the Death Priest and the Pitch Bone Legion stormed the bastion from its sea gates.
After the Black Tide War, the ruins of Holy Sanctum became the headquarters of the Kambar-Ghul.
In the Athenian Crusade (1539 - 1551), Holy Sanctum was surrounded, resulting in the total destruction of the army of Kambar-Ghul.
Today, the eroded siege works and trench lines of long ago battles litter the area along with the bones of tens of thousands. The ruins of Holy Sanctum are avoided by most, roads and even game paths make a wide circuit, and undead sightings are common in the ruins.
Holy Sanctum has the Blood of Phalgas running into its ruined forge. Before the Black Tide sacked the place, this magical stream was used to produce thousands of soul-fire weapons.