Is there any evidence to the Death Eagles being an EC successor? I was reading the EC Lexicanum page due to the Lex being the most accurate vault of knowledge for 40k.

Anyways, I was reading the history section of the EC, and it said,

**"Some elements of the Emperor's Children loyal to the Emperor remained, with at least one warband of them forming the Death Eagles."**

Does this have any evidence? Any 30k EC chapter being called the "Death Eagles" akin to the 30k Pale Nomads for the RG or such.