Gathalamor

Gathalamor is a cardinal world south-west of Terra, a pilgrimage stop packed with crypts, cathedrals and ossuaries. Cardinal Bucharis built an empire of unbelief from here in the Age of Apostasy; Dolan Chirosius died stopping him. Mount Amalath later hosted the sermons that named a whole Inquisitorial faction. Chaos hit it again after the Rift, and the Indomitus Crusade had to peel them off.