Umberto II was the Ecclesiarch of the Adeptus Ministorum and a High Lord of Terra during his lifetime. Under Umberto's leadership, the common faithful of the Imperium of Man rose up and took the fight back to the corrupt followers of the Ruinous Powers, standing shoulder-to-shoulder with their brothers and sisters in the Imperial Guard and the Space Marines. Ancient Terran scholars ascribed the near two thousand standard years of uneasy peace between the 11th Black Crusade in 301.M39, and the Gothic War in 139.M41, largely to the legacy of Umberto’s efforts and Wars of Faith in the Segmentum Obscurus.