Reading through All-New X-Factor shortly after Annihilation caused me some confusion. The X-Factor books deal with the Technarch race with Magus as the King of Kvch and his son Warlock who is a member of the New Mutants.
Similarly, Adam Warlock was a character that Jim Starlin created as a reboot of Him when coming back to the Marvel Cosmic Universe in the mid-70's. Adam Warlock has a separate personality called the Magus.
Warlock and Adam Warlock are aligned (most often) as good within the Marvel Canon while Magus and The Magus (Adam Warlock's alternate personality) are aligned (most often) as evil.
This is all very confusing and funny enough in the X-Factor Books Havok makes a tongue in cheek reference to it when asking Quicksilver information on Lorna Dane. I unfortunately cannot find the image, but will upload if I find it.
Was this duplicate naming intentional? I could not find any correlation of backstory through research.