Inquisitor Greyfax is a powerful psyker of the Ordo Hereticus, freed after centuries of imprisonment in a Necron tesseract vault. She matters because she bridges the old, rigid Imperial orthodoxy and the desperate new era after the Great Rift, fighting alongside the very ‘abominations’ she once despised.
Who is Katarinya Greyfax?
Katarinya Greyfax (rosette number 7134/S3) is a human Inquisitor of the Ordo Hereticus. She started as a Puritan but is now classed as a Radical, meaning she’s willing to bend or break the harsher rules of her office when the stakes demand it.
She’s a psyker herself, which makes her hatred of unsanctioned psykers and mutants deeply personal. Her faith in the Emperor has never wavered, even when the Imperium around her changed beyond recognition.
From the tesseract vault to Cadia
Greyfax spent centuries locked inside a Tesseract Vault by the Necron Overlord Trazyn the Infinite. He released her and his other prisoners during the 13th Black Crusade to help the Imperial defenders on Cadia.
What she found appalled her. Imperial psykers used their powers without sanction. The Space Wolves’ Wulfen ran loose on the battlefield. Worst of all, the defenders worshipped Celestine as a Living Saint, which Greyfax saw as plain idolatry.
She fought alongside those same ‘abominations’ anyway and even took the fight to Abaddon personally. Cadia fell regardless, and Greyfax fled to the outer system with Celestine and Belisarius Cawl, guided into the Webway on Kalisus by Eldrad Ulthran.
The Terran Crusade and after
Greyfax accompanied Celestine through the Ultramar Campaign and fought at the Fortress of Hera as Roboute Guilliman was reborn. She joined the Terran Crusade and was one of the few to reach Terra.
During that voyage she let go of her suspicion toward ‘unnatural’ beings like Celestine, and Cawl freed her from Trazyn’s Mindshackle Scarab. On Terra, she and Celestine announced they’d spread their blessings and report back to the Ordo Hereticus.
Since then she’s stayed busy. She and Inquisitor Horst, backed by Grey Knights, entered the Eye of Terror to recover the Eye of Night. Later she worked with the White Scars to ambush the Death Guard on Dortwyr using Deathstrike missiles, and she’s earned fresh notoriety for fanatical purges of Necron forces around Ultramar.
Why she matters in the lore
Greyfax is one of the clearest examples of how the Imperium’s survival after the Great Rift forced old certainties to bend. A Puritan turned Radical, she now works with saints, xenos guides, and tech-priests she’d once have condemned.
She’s also a direct link between the Necron storyline, the fall of Cadia, and Guilliman’s return, giving fans a single character who ties several major threads together.
- Ordo Hereticus Inquisitor, rosette number 7134/S3
- Originally a Puritan, now a Radical
- Imprisoned by Trazyn the Infinite for centuries
- Freed during the 13th Black Crusade on Cadia
- Present at Guilliman’s rebirth and the Terran Crusade
- Active against Necrons, Death Guard, and daemons
Key facts
- Katarinya Greyfax is an Inquisitor of the Ordo Hereticus, rosette number 7134/S3.
- She began as a Puritan and is now considered a Radical.
- Trazyn the Infinite imprisoned her in a Tesseract Vault for centuries.
- She fought at Cadia, the Fortress of Hera, and on the Terran Crusade.
- Belisarius Cawl freed her from Trazyn’s Mindshackle Scarab.
- She’s known for purges of Necron forces around Ultramar.
FAQ
Is Inquisitor Greyfax a psyker?
Yes. She’s a powerful psyker herself, which is part of why she’s so hardline about unsanctioned psykers and mutants.
Who imprisoned Greyfax?
The Necron Overlord Trazyn the Infinite kept her in a Tesseract Vault for centuries. He released her and other prisoners to help defend Cadia during the 13th Black Crusade.
What is Greyfax’s rosette number?
Her Inquisitorial rosette number is 7134/S3.