|Segmentum=[[Segmentum Solar]]{{Fn|1b}}|Sector=[[Tertius Sector]] {{Fn|2}}|Subsector=[[Veritus Sub-Sector]]{{Fn|1b}}|System=[[Talledus System]]{{Fn|1b}}

|Class=[[Fortress World]], [[Garrison World]]{{Fn|1b}}, [[War World]]

'''Ghreddask''' is a [[Garrison World|Garrison]] and [[Fortress World]] of the [[Imperium]].{{Fn|11c}}

 ==Overview==The most heavily defended world in the [[Veritus Sub-Sector]] after [[Benediction]] itself, the world sported large numbers of [[Imperial Guard]] garrisons and heavy defensesdefences. It {{Fn|1c}} Ghreddask also raises [[Imperial Guard Regiment]]s of its own, known as the [[Ghreddask Illuminators]].{{Fn|1a}} ==History==Despite its defences, it nonetheless was invaded by [[Iron Warriors]] under [[Etrogar]] during the [[Talledus War]], who used a [[Soul Harvester]] to devastate the planet. The tide only turned thanks to the [[Black Templars]] [[Castellan (Black Templars)|Castellan]] [[Dramos]], who sacrificed himself to destroy the engine.{{Fn|11c}}

*{{Endn|1}}: [[Psychic Awakening: Faith and Fury]], :**{{Endn|1a}}: pgs. 6-7 **{{Endn|1b}}: pgs. 8-9**{{Endn|1c}}: pgs. 16-17*{{Endn|2}}: [[Throne of Light (Novel)]], Appendix:Notes on the Crusade