From Warhammer 40k - Lexicanum
Dam Marta is a Chaos Knight of House Herpetrax.
Piloting the Knight Desecrator Eternal Dread, Dam Marta has personally bested dozens of Imperial Knights. Though badly damaged throughout its battles, the Eternal Dread has grim tenacity and its bloodthirsty pilot has seen it continue to fight on. Dam Marta is among the nobles of Herpetrax, for she was the first aspirant in centuries to successfully integrate with the Throne Mechanicum of the Eternal Dread. The process took a full month, during which time she was exposed to the electro-gheists that had consumed many souls before her. Though successful, the process has left her permanently fused to the Throne.
- 1: Codex: Chaos Knights (8th Edition), pg. 17