G'day All!
Just finished "The First Heretic" & what a great read. More Fluff & info comes with each new HH novel.
In the book we learn that the Word Bearers were known as "the Imperial Heralds" prior to being reunited with Lorgar.
We know that the Sons of Horus were previously the Lunar Wolves but do we know of any other Chapters that had a Name Change after their Primarch was reunited with them.