The Emperor's Children, also sometimes known after their fall as the Lords of Profligacy, are a Traitor Legion of Chaos Space Marines who devote themselves solely to the service of the Chaos God Slaanesh, the Prince of Pleasure, though they were originally the Imperium of Man's proud IIIrd Legion of Astartes.
The Emperor's Children was the only Space Marine Legion to bear the Emperor's own name and His own icon -- the Palatine Aquila -- granted to them by His hand as a symbol of the Legion's martial perfection. Few were ever so honoured amongst the ancient Space Marine Legions and given less cause to betray the Master of Mankind than the Emperor's Children.
Given the plaudits and accolades accorded them, few could doubt that they were the embodiment of what the Emperor had intended the Legiones Astartes to be: noble in action and aspect, excelling in all matters, strong, civilised, firm of purpose and loyal to the core.
From this height they descended in treachery to the lowest and vilest of creatures, enslaved to pride and consumed by hedonistic desires that no natural power could fulfill. The Emperor's Children are now a scattered Legion much like their counterparts the World Eaters, their unity devoured by their allegiance to Chaos. The Emperor's Children Legion now exists only as scattered, autonomous warbands of Heretic Astartes located in the Eye of Terror who are dedicated to their own pursuit of corrupt, hedonistic and usually murderous pleasures. The Chaos Space Marines of the Emperor's Children are known for possessing outlandish mutations and surgical alterations as "gifts" from Slaanesh which are designed to make them more "perfect" in the eyes of their twisted patron.
