The Daemon Primarchs timeline (potential spoilers)

[Valkyrion]

Are there official sources for when each of the traitor primarchs became daemons?

 

I've recently reread so the first that comes to mind;

 

Fulgrim - Early Heresy - Angel Exterminatus - not dated, but it's not long after Isstvan

[lansalt]

Angron - Early Heresy - Betrayer - after the start of the Shadow Crusade, but before the arrival of BA/DA to Ultramar

Mortarion - Late Heresy -  The Buried Dagger - it happened in route to the Siege of Terra

Magnus - Siege of Terra - Fury of Magnus - He was a warp being thing before, but he only became a true daemonprince later in that novel.

Lorgar - Scouring era -  not explained, but when Corax is hunting him after the Heresy, he's already become one.

Perturabo - Scouring era - Index Astartes I: Iron Warriors - became a daemonprince after decimating the IF in the Iron Cage

 

Alpharius/Omegon - never became a daemonprinces as far is know.

Horus - got the power of the 4 Chaos Gods until the end, but technically he wasn't a daemonprince.

Edited January 8, 2022 by lansalt

[Corswain]

Curze was also never a Daemon Prince. Pretty well known but he was missing and it was making my brain itch. ;)

[Ubiquitous1984]

Angron - Early Heresy - Betrayer - after the start of the Shadow Crusade, but before the arrival of BA/DA to Ultramar

Mortarion - Late Heresy -  The Buried Dagger - it happened in route to the Siege of Terra

Magnus - Siege of Terra - Fury of Magnus - He was a warp being thing before, but he only became a true daemonprince later in that novel.

Lorgar - Scouring era -  not explained, but when Corax is hunting him after the Heresy, he's already become one.

Perturabo - Scouring era - Index Astartes I: Iron Warriors - became a daemonprince after decimating the IF in the Iron Cage

 

Alpharius/Omegon - never became a daemonprinces as far is know.

Horus - got the power of the 4 Chaos Gods until the end, but technically he wasn't a daemonprince.

What happen to Angron in the Siege book (I think The First Wall?) when he attacked the Wall and got blasted by like 50,000 guns, only to rise again even stronger?  Was this just Khorn remaking him?  It wasn't clear to me when I was listening to it and forgot to go back to it for confirmation.